{"title":"STP: Propagation Kits, Trays \u0026 Accessories","description":"\u003cp\u003eThe STP system range comprises propagation kits and multi-cell trays in the STP base format. Choose cell size and cell count, then compare what is included. Individual multi-cell trays, sets with a base and capillary mat, and covered propagators are different offers.\u003c\/p\u003e\u003cp\u003eSelect spare parts and accessories by the exact model, usable height and specific product assignment. Mats, trays or covers already included do not need to be purchased again.\u003c\/p\u003e\u003cp\u003eG24 is a mechanically separate system family. STW rockwool propagators with 40, 77 or 150 cubes belong to the G24 base format of 53 × 31 cm, not the STP family. The growing medium alone does not establish accessory compatibility. Where dimensions differ, the original drawings take precedence. The height of a separate cover is not automatically the free space above a filled tray.\u003c\/p\u003e","products":[{"product_id":"stp-untersetzer-topfplatten","title":"STP Support Tray for Cell Trays","description":"\u003cp\u003eThe reusable STP support tray catches water beneath a matching cell tray or suitable pots with drainage holes. Its smooth plastic surface is easy to clean.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900403548544,"sku":"STP-Untersetzer","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-3001-0-original-20260916.webp?v=1789552212"},{"product_id":"stp-bewaesserungswanne-kapillarmatte","title":"STP Watering Tray with Capillary Mat","description":"\u003cp\u003eThe tray and capillary mat provide a base for watering from below. They are intended for STP standard cell trays and suitable pots; check the water level and growing-medium moisture regularly.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900403614080,"sku":"STP-Wanne","price":9.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-3002-0-original-20260916.webp?v=1789552217"},{"product_id":"stp-abdeckhaube-12-cm","title":"Tall STP Propagation Cover – 12 cm Usable Height","description":"\u003cp\u003eThe thin, lightweight cover creates a sheltered propagation space over STP cell trays for seeds, cuttings and young plants. It provides approximately 12 cm usable height and is supplied without open vents.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900403712384,"sku":"STP-Cover12","price":10.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-3458-0-original-20260916.webp?v=1789552221"},{"product_id":"stp-anzuchtplatte-qp-24r","title":"STP QP 24R Propagation Tray – 24 Cells","description":"\u003cp\u003eThe reusable QP 24R cell tray provides 24 separate growing spaces that you fill directly with growing medium. Bottom openings and raised feet support drainage and aeration.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900403777920,"sku":"QP-24R","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-3217-0-original-20260916.webp?v=1789552230"},{"product_id":"stp-anzuchtplatte-qp-35r","title":"STP QP 35R Propagation Tray – 35 Cells","description":"\u003cp\u003eThe reusable QP 35R cell tray provides 35 separate growing spaces that you fill directly with growing medium. Bottom openings and raised feet support drainage and aeration.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900404826496,"sku":"QP-35R","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-2987-0-original-20260916.webp?v=1789552238"},{"product_id":"stp-anzuchtplatte-qp-54r","title":"STP QP 54R Propagation Tray – 54 Cells","description":"\u003cp\u003eThe reusable QP 54R cell tray provides 54 separate growing spaces that you fill directly with growing medium. Bottom openings and raised feet support drainage and aeration.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900404859264,"sku":"QP-54R","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-2986-0-original-20260916.webp?v=1789552246"},{"product_id":"stp-anzuchtplatte-qp-77","title":"STP QP 77 Propagation Tray – 77 Cells","description":"\u003cp\u003eThe reusable QP 77 cell tray provides 77 separate growing spaces that you fill directly with growing medium. Bottom openings and raised feet support drainage and aeration.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900404957568,"sku":"QP-77","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-2988-0-original-20260916.webp?v=1789552255"},{"product_id":"stp-anzuchtplatte-qp-150r","title":"STP QP 150R Propagation Tray – 150 Cells","description":"\u003cp\u003eThe reusable QP 150R cell tray provides 150 separate growing spaces that you fill directly with growing medium. Bottom openings and raised feet support drainage and aeration.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900405023104,"sku":"QP-150R","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-3218-0-original-20260916.webp?v=1789552264"},{"product_id":"stp-anzuchtset-qp-77","title":"STP QP 77 Watering Set – 77 Cells","description":"\u003cp\u003eThis STP set combines 77 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900640264576,"sku":"QP-77-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3051-3051_0.webp?v=1789555246"},{"product_id":"stp-anzuchtset-qp-54r","title":"STP QP 54R Watering Set – 54 Cells","description":"\u003cp\u003eThis STP set combines 54 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900642263424,"sku":"QP-54R-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3052-3052_0.webp?v=1789555264"},{"product_id":"stp-anzuchtset-qp-35r","title":"STP QP 35R Watering Set – 35 Cells","description":"\u003cp\u003eThis STP set combines 35 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900642328960,"sku":"QP-35R-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3053-3053_0.webp?v=1789555268"},{"product_id":"stp-anzuchtset-qp-24r","title":"STP QP 24R Watering Set – 24 Cells","description":"\u003cp\u003eThis STP set combines 24 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900642361728,"sku":"QP-24R-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3219-3219_0.webp?v=1789555272"},{"product_id":"stp-anzuchtset-qp-150r","title":"STP QP 150R Watering Set – 150 Cells","description":"\u003cp\u003eThis STP set combines 150 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900642394496,"sku":"QP-150R-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3220-3220_0.webp?v=1789555276"},{"product_id":"stp-topfplatte-untersetzer-qp-77","title":"STP QP 77 Tray \u0026 Base Set – 77 Cells","description":"\u003cp\u003eThis STP set combines 77 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900642427264,"sku":"QP77+QPUntersetzer","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3323-3323_0.webp?v=1789555281"},{"product_id":"stp-topfplatte-untersetzer-qp-24r","title":"STP QP 24R Tray \u0026 Base Set – 24 Cells","description":"\u003cp\u003eThis STP set combines 24 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900642525568,"sku":"QP24R+QPUntersetzer","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3324-3324_0.webp?v=1789555291"},{"product_id":"stp-topfplatte-untersetzer-qp-35r","title":"STP QP 35R Tray \u0026 Base Set – 35 Cells","description":"\u003cp\u003eThis STP set combines 35 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900642984320,"sku":"QP35R+QPUntersetzer","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3325-3325_0.webp?v=1789555296"},{"product_id":"stp-topfplatte-untersetzer-qp-54r","title":"STP QP 54R Tray \u0026 Base Set – 54 Cells","description":"\u003cp\u003eThis STP set combines 54 growing spaces with a matching base tray. 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Fill the cells directly with suitable growing medium; no separate pots are needed.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59900643737984,"sku":"QP150R+QPUntersetzer","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3327-3327_0.webp?v=1789555305"},{"product_id":"stp-anzuchthaus-qp-24r","title":"STP QP 24R Propagator – 24 Cells","description":"\u003cp\u003eThis STP set combines 24 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below. The lightweight cover provides a sheltered propagation space with approximately 10 cm usable height.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900643934592,"sku":"STP-Anzuchthaus-24R","price":24.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3424-3424_0.webp?v=1789555308"},{"product_id":"stp-anzuchthaus-qp-35r","title":"STP QP 35R Propagator – 35 Cells","description":"\u003cp\u003eThis STP set combines 35 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below. 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The lightweight cover provides a sheltered propagation space with approximately 10 cm usable height.\u003c\/p\u003e","brand":"GREEN24","offers":[{"title":"Default Title","offer_id":59900644950400,"sku":"STP-Anzuchthaus-54R","price":24.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp-set-3460-3460_0.webp?v=1789555336"},{"product_id":"stp-anzuchthaus-qp-77","title":"STP QP 77 Propagator – 77 Cells","description":"\u003cp\u003eThis STP set combines 77 growing spaces with a matching base tray. Fill the cells directly with suitable growing medium; no separate pots are needed. The included capillary mat supports watering from below. 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The QP 273-2 tray measures 322 × 522 mm externally.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59901360865664,"sku":"QP-273-2","price":7.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp273-3244_0.webp?v=1789562452"},{"product_id":"stp-qp273-2-anzuchtset","title":"QP 273-2 Propagation Set with Capillary Mat","description":"\u003cp\u003e273 integrated cells of 11 ml each provide separate propagation positions. The QP 273-2 tray measures 322 × 522 mm externally. 1 QP 273-2 cell tray, 1 watering tray and 1 capillary mat. Cover and growing medium not included.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59901360931200,"sku":"QP-273-2-SET","price":14.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp273-3243_0.webp?v=1789562461"},{"product_id":"stp-qp273-2-untersetzer-set","title":"QP 273-2 with Support Tray – No Mat","description":"\u003cp\u003e273 integrated cells of 11 ml each provide separate propagation positions. The QP 273-2 tray measures 322 × 522 mm externally. 1 QP 273-2 cell tray and 1 support tray. Capillary mat, cover and growing medium not included.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59901361029504,"sku":"QP273+QPUntersetzer","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp273-3328_0.webp?v=1789562465"},{"product_id":"stp-anzuchthaus-273-2","title":"QP 273-2 Propagator with Tall Cover","description":"\u003cp\u003e273 integrated cells of 11 ml each provide separate propagation positions. The QP 273-2 tray measures 322 × 522 mm externally. 1 QP 273-2 cell tray, 1 watering tray, 1 capillary mat and 1 lightweight tall cover. Growing medium not included.\u003c\/p\u003e","brand":"HerkuPlast","offers":[{"title":"Default Title","offer_id":59901361193344,"sku":"STP-Anzuchthaus-273-2","price":24.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0972\/2868\/5696\/files\/green24-stp273-3463_0.webp?v=1789562469"},{"product_id":"stp-kapillarmatte","title":"STP Capillary Mat for QuickPot Support Trays","description":"\u003cp\u003eThe mat transfers water from a matching STP support tray to the container bases. 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