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Big Blue 20 Inch 20x4.5 Housing Sentry
Big Blue 20 Inch 20x4.5 PRV Watermark Housing Sentry

20"x4.5" Big Blue Whole House Mains Water Filter Housing - Excludes Bracket, Spanner, Filters BB20

Sentry Water Filters
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Sale price

1x 20"x4.5" Big Blue Tank Water Filter Housing

If Applicable Watermark Certificate No. 023247

Available with 1"BSP inlet + outlet ports | Has pressure release valve button

The Watermark certified housings are supplied with brass threaded ports

Watermark certification is required when installing permanently to mains water supply and in some tank applications but not required for rural / agricultural use and other uses where the housing is not under constant water pressure i.e. used after an approved valve like a tap that is turned on / off when the unit is used

Accommodates all standard 20"x4.5" standard water filter cartridges 

PLEASE NOTE: This is a housing only and does not include a bracket, spanner or filters [we have them listed separately]

All of the parts that come into contact with the water in our systems are manufactured from BPA free food grade plastics. All of the filters and parts that we source are of the highest quality and meet the required quality standards.

Not all the images displayed in this listing are included in the item for sale as images of other related items are included for informative purposes only but available in our online store.

This water filter housing carries a full 12 month warranty on all parts supplied in the original order

According to regulatory standards any water filter system under constant water pressure [regardless of the brand or supplier] is required to be fitted with an AS3497 approved pressure reducing valve and back-flow prevention device.

If you are not entirely satisfied with your purchase please contact us so that we can resolve your concerns.