
Cistern Displacement Bags (3)
Sit in the cistern to lower the volume of water drawn per flush.

Fillable banks that displace water in the cistern to lower per-flush volume.
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Two fillable tank banks that hang inside the cistern and displace water, lowering the volume the toilet draws and releases on each flush.
A rigid alternative to displacement bags for older single-flush tanks. Fill with water, seal and hook inside the tank.
Suits older single-flush cisterns. Keep clear of the flush valve and float — check there is room before fitting.
Unopened items can be returned within 14 days of delivery. See our Returns policy for the full process.
This product reduces the flow rate of water. We don’t claim any specific money, water or percentage saved — results depend on your home and habits.

Sit in the cistern to lower the volume of water drawn per flush.
Workshop favourite
Starter setSix screw-in aerators that mix air into the stream to lower tap flow rate.
Rated flow ≈ 5.7 L/min (1.5 GPM)