Pack of lids for 19 L pot (×5)
This pack of 5 lids by Growrilla fits the 19 L tanks in RDWC 2.0 and PRO networks. The solid version closes the controller pot and allows the pump cable through via a hatch; the drilled version accepts a 14 cm basket.
The pack replaces damaged lids or equips new tanks.
The summary
- What it is: the 30 cm piece that closes a 19 L tank and protects its solution from light.
- Two versions: solid, with a flap for the pump cable, or drilled for a 14 cm basket.
- Pack of five: enough to kit out a small system in one go, or to keep a spare supply.
- What wears them out: a basket pulled out roughly at harvest, and a heavy plant left without a support.
5 lids for 19 L pots, solid or pierced for a 14 cm basket
The pack of 5 Growrilla lids covers the 19 L tanks of RDWC 2.0 and PRO systems, with a diameter of 30 cm. The solid version covers the controller pot and lets the pump cable pass through a hatch, while the version with a hole takes a 14 cm net pot. The white top reflects the light from the lamps, and the black underside protects the solution.
A 19 L tank closes with a 30 cm diameter lid that protects the solution from light. The pierced lid holds a growing pot basket, while the solid lid seals the control pot, where the pump is submerged.
🎯 Solid or pre-drilled
The pack contains 5 identical lids, all in the version you have chosen. The perforated lid takes a 14 cm basket and closes a grow pot around the collar of the plant; the solid lid closes the controller pot, and a small flap cut into the edge lets the pump cable or a heater cable pass through. Both versions fit the 19 L tanks of the 2.0 and PRO generations.
The solid lid
It closes the controller pot and lets a cable pass through its hatch.
The pre-drilled lid
It takes a 14 cm basket and seals a growing pot.
The same diameter
Both versions measure 30 cm and fit all 19 L tanks in the system.
Five per pack
The pack equips a small system in one go, or serves as a spare stock.
This interchangeability pays off whenever the system changes shape from one cycle to the next. You might go from 8 grow pots to 6, set two tanks aside out of season, or add a second dosing point on a large system: each time, you only change the lid, provided the tank has the drilled holes for its new role.
🧢 Two sides, two materials
The lid is moulded in black polypropylene, coated on its upper face with a layer of white PVC. The black face, turned towards your solution, keeps light from getting in, which deprives algae of what they need to proliferate. The white face, turned towards the lamps, reflects their radiation instead of absorbing it, so the solution heats up less under the lid. A badly fitted or missing lid lets light in, and a lit solution turns green; so put each lid back down flat after any intervention.
The 14 cm baskets for pre-drilled lids
Each drilled lid takes a 14 cm basket, the diameter its opening is designed for. A smaller basket would leave a gap through which light would reach the solution, whereas the right diameter closes the tank while holding the root ball above the water. Order them at the same time as your lids, in the same number, and keep one or two spare for the next cycle.
🔄 What damages them
Two actions wear out a perforated lid, and you do both at harvest time. The first is pulling on a basket whose roots have colonised the openings: the rim of the basket strains against that of the lid. The second is leaving a mature plant resting on the lid alone for weeks. So cut the roots flush with the base of the basket rather than pulling, and fix a stake to the rim of the tank as soon as the plant becomes heavy, so that the wall carries the load.
🧴 Cleaning them between cycles
Between two cycles, rinse the lids in clean water and scrub them with a soft brush, on both sides. Solution deposits dry on the black side and around the opening, where water splashes when you put a basket back in, and they come off more easily before they have hardened. Leave them to dry before storing them flat and away from light. On a circuit that you are opening anyway, it is also the moment to check the condition of the seals on the fittings you have taken apart.
Technical specifications
The essentials
- Quantity
- 5 lids
- Two versions
- Solid or drilled
- Diameter
- 30 cm
- The drilled piece receives
- 1 basket of 14 cm
- Material
- Black polypropylene, white PVC topThe black blocks light; the white reflects the light from the lamps.
- The solid lid
- 1 cable entry hatch
To budget for separately
- Growing basket
- 1 basket of 14 cm per drilled lid.
- Supporting heavy plants
- Support stake clipped to the tank wall
In the box
- 5 lids for 19 L pots, all in the chosen version — solid or perforated.
Diameter, materials, access hatch and compatibility noted from the manufacturer's component pages on 07/10/2026.
Manufacturer and product safety
- Manufacturer
- Growrilla di Milone Giulio
- Postal address
- Via Fiano 207, 10070 Robassomero (TO), Italie
- Website
- growrillahydroponics.com
Information provided under Regulation (EU) 2023/988 on general product safety.
Solid or pre-drilled?
Both packs contain 5 lids for the same tank. This table compares what each version does with the pot.
| Takes a 14 cm basket | Pump cable access hatch | Role of the pot | Lids per pack | Diameter (cm) | Material | Price | |
|---|---|---|---|---|---|---|---|
| Controller (solid)Your choice | No | Yes | Pumping and dosing | 5 | 30 cm | Black PP, white PVC top | 14,90 € |
| Recommended Pre-drilled (for pot)Your choice | Yes | No | Growing | 5 | 30 cm | Black PP, white PVC top | 19,90 € |
Versions, diameter, materials and hatch recorded from the manufacturer's component pages on 07/10/2026.
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Five lids stack together and travel flat in a light but wide parcel. Shipment leaves from the workshop in Robassomero, near Turin. Exact shipping costs and final delivery times are displayed in the basket once your address has been entered. Outside the European Union, import duties and taxes remain the responsibility of the recipient.
Frequently asked questions
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