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4 Gallon / 18 Litre Primary Expansion Cistern
POLYTANK Primary Expansion Cistern
Includes PT2/A Package consisting of:- Snap On Polylid
- 1/2' BS1212 Part 2 Ballvalve
- Ballvalve Backplate
- 4 1/2' Float
- 15mm Compression Tank Connector
- Sealing Washer
- Insulation & Ties
Actual capacity shown
Actual capacity = float level water line
Nominal capacity= full capacity to top of tank