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Fluidmaster AIRGAP 6000 Water Saving Brass Shank Fill Valve 1/2" Bottom Entry

4.3 (90 reviews)
SKU: 241122113953004 EAN: 5011629023030

Compare 1 price for Fluidmaster AIRGAP 6000 Water Saving Brass Shank Fill Valve 1/2" Bottom Entry — from £17.00 across 1 UK seller including B & Q.

£17.00 6h ago
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• BS 1212-4 compliant • No need for additional single/double check valve (no IRN 150 or IRN 160) • Eliminates backflow into the cistern • Fits virtually every cistern • Delayed fill reduces water consumption by up to 1 litre per flush • Easy toolless installation • Height adjustable • Quiet refill owing to the spiral flow vortex generator • Optimum performance, even at low and high pressures • Fully recyclable
Bowl Shape Standard
Brand Fluidmaster
Colour Green
Item Diameter 1/2" (Connection)
Item Height 1/2"
Material Brass, PVC
Room Any Room, Bathroom, Utility/Laundry Room, Indoor/Outdoor
Shape Straight
Style Modern
Suitable For Flush Tank, Toilet
Type Cistern
No features listed
No items listed

Customer Reviews 90

4.3
90 reviews
5 star
57
4 star
16
3 star
10
2 star
1
1 star
6
Tank filler valve
1.0
February 1, 2026
Psycho 599 uk Verified Purchase

Didn't come with silent fill bag does the job a bit sticky hard to set to desired fill level.

Measure before purchasing
4.0
January 26, 2026
1a32bec8-1614-5349-b3f8-53491836becf Verified Purchase

Too tall for my vintage cistern☹️ so I had to shorten the plastic connection between the float chamber and valve to get a functioning water level

Bottom entry fill valve
5.0
September 9, 2025
Jakson Verified Purchase

Bottom entry filling . Easy to install came with all the bits required to complete the repair/ replacement

Good item
4.0
August 22, 2025
Ipas Verified Purchase

Very good so far. Very easy to install. Not quite as quiet as expected from the manufacturers description but not a problem.

Down the Pan
3.0
August 16, 2025
Gaza 1063 Verified Purchase

Good quality product purchased to replace a cheap filler valve that was constantly running.
The air gap feature is a good idea to help save water.

A
2.0
August 9, 2025
Handy Andy genuine Verified Purchase

I'm not happy with this product...the water came up to 25mm below the old mark so I tried adjusting it and it runs through the overflow every time...I must've tried it about 100 times...also not as silent as they said...I won't be buying again.

Works fine
5.0
July 30, 2025
Buzz x Verified Purchase

Easy to fit, found the water level adjustment needs to be gone back to a few times. works fine.

Theory is good
4.0
June 10, 2025
ca3fcde4-7f73-5088-a919-edc9f6fd63f2 Verified Purchase

A week in and this replacement appears to be sound; Toolstation were prompt in supplying a replacement unit.
The first one passed sufficient water overnight to raise the cistern level ca 2 cm. HOWEVER this may have been caused by a trace of Boss White entering the system or misc debris preventing a tight shut off seal so it may not have been the fault of the unit.
I would recommend anyone contemplating fitting one of these units to thoroughly become conversant with adjustment process prior to fitting. Following the adjustment procedure, ensure that the float assembly is pushed down on the vertical inlet shaft until it clicks into place. Not loud by any means but not as quiet as led to believe.

Toilet filler with air gap excellent value
5.0
May 11, 2025
Jim pretz Verified Purchase

Easy to fit.works very well .very happy with this product. Price good

Ok
3.0
May 1, 2025
39tr Verified Purchase

Easy to fit, not always shutting off when full so not sure i can recommend

Great product
5.0
February 21, 2025
Samindevon Verified Purchase

Great product, easy to install saves water and it’s quiet too!👍

Easy fill
3.0
February 2, 2025
Podski Verified Purchase

Good and easily installed dose the job easy adjustment too

Easy fit
5.0
January 11, 2025
Getagrip Verified Purchase

I needed something to stop water hammer activating a combi boiler. The airgap 6000 sorted it. Easy to fit. Very pleased with the result. If I can fit one, anyone can.

Fluid master bottom Entry Easy to fit quiet fill .
4.0
December 23, 2024
Stan 01 Verified Purchase

Does what it say easy to fit , relatively quiet fill. Feels sturdy product, like brass connection instead of plastic like others.

Float stuck
1.0
December 15, 2024
Ken56 Verified Purchase

After nearly an hour fitting this valve it was dissapointing to find the float sticks!

Ball valve WC 1/2 brass .
5.0
November 4, 2024
32mlsbgczadh6mf2da1yzblmr Verified Purchase

A good quality product and easy to install, I would recommend the valve .

Good product
4.0
October 11, 2024
Steve from Cheshire Verified Purchase

The plastic mechanism could have been a bit more sturdy. A better quality rubber washer and a spare washer would be nice. The fill noise is on the high side. Overall this product is good.

Over engineered and critically flawed
1.0
October 6, 2024
Hairyhandyman Verified Purchase

The height adjustment is flawed. Instead of the usual adjustment by telescoping to correct height and rotating to lock, the green float enclosure is slid up to unlock and slid down to lock. When the cistern fills up if you have set the height to a lower setting, the water pressure sometimes pushes the green housing up, unlocking the height setting and pushing the valve mechanism into the lid of the cistern. Utter rubbish in any shorter cistern. The micro adjustment is also flawed, as the screw is prone to slight movement meaning it will catch on the housing, preventing the float from dropping back down.

I like it
5.0
September 24, 2024
NotaCowboy

Very pleased with the product, can hear it fill & shut off unlike the bottom fill type, good product

Fluidmaster
5.0
September 15, 2024
u2o58xshhgp11o1959szbjpn5 Verified Purchase

What is great about this product, is the brass incert with plastic nut, usually it’s all plastic and that’s why l went for this product, as it was easy to fit and great on value.

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