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Siamp 10" Bottom Float Valve, 1/2" Plastic Tail

99 % of 100
Item Code: SP026371

Siamp Compact 99B inlet valve is a reliable toilet float valve replacement for most ceramic or plastic bottom entry cisterns 30996007. Sold in many Twyfords, Vitra, Lecico sanitaryware and B&Q bathroom packs.

Availability: In stock

Regular Price £18.58
Now only £11.99

Siamp 10" Bottom Float Valve, 1/2" Plastic Tail

Why Buy?

  • WRAS Approved
  • BS1212 Part 4
  • 10" (254mm) height
  • Fits most cisterns
  • Anti-siphon design prevents contamination of fresh water supply
  • 1/2" Plastic Tail
  • Compact - float supplied
  • Easy to install
  • 10 Year Guarantee


The Siamp Standard 99B Bottom Entry 1/2" Plastic Compact Inlet Valve 30996007 is an ideal replacement for most plastic or ceramic cisterns.

WRAS Approved
WRAS stands for Water Regulations Advisory Scheme, a certification mark that demonstrates that an item complies with the high standards set out by water regulations.

BS1212 Part 4
BS1212 is a British Standard of manufacturing, so you can be assured that the product will be of high quality specification, design and build. Part 4 valves are equilibrium valves - they manage the pressure of the water within the valve to give assisted shut off and hydraulically open the inlet, for a fast, smooth and quiet operation of the water returning into the cistern after flushing.

Fixed Height
The fill valve has an 10 inch height. This is to allow the installer accuracy when setting the water level inside the cistern, so you can decide how much water you want to allow back into the cistern before the valve shuts off, giving you the freedom to make your toilet as water saving as you'd like.

1/2" Plastic Tail
Supplied with a threaded 1/2" plastic tail, this will fit most plastic or ceramic UK cisterns with a 1/2" inlet, making installation as easy as possible.

Designed with an unobtrusive float mechanism, this inlet valve can be fitted inside even the smallest of toilet cisterns, perfect for any en-suite or WC.

Easy to Install
Supplied with comprehensive fitting instructions, this product could not be easier to install. Once the water flow to the toilet has been shut off and the cistern has been drained of all water. Remove the old valve, unscrew the nut from the inlet thread, place inside cistern (inlet hole), seal and re-attach the nut onto the inlet thread. Once the water level has been set to the desired height, turn the water back on for testing.

10 Year Guarantee
Giving you that extra peace of mind, if the product breaks or doesn’t work then please let us know and we will be happy to refund or replace the item within 10 years of purchase.

More Information
SKU SP026371
Manufacturer Siamp
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