Water Filters and Softeners
at Manufacturer Prices

Spanner for Big Blue Filter (4.5×10″ & 4.5×20″)

£38.33 Including Tax
£32.58 Including Tax

RRP £38.33


  • Big Blue Filter Housing Spanner
  • Filter Spanner for 4.5″ x  10″ or 20″ housings

Big Blue Water Filter Housing Service Spanner Used to open the sump on Big Blue water filter housings.

Available in 3 sizes , Pentair BB10″ (pale blue or black)(SW3) , Pentair BB20″(pale blue or black) (SW4) and NON Pentair (French Blue) BB10″ and BB20″ vessels

Made from high quality durable plastics.

A filter housing spanner is an essential tool for opening a filter housing after it has been sealed for a period of time.


Using the spanner guide


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