Filtrite SK900 Weir Door – Skimmer Box Spare Part (PWD509)

Filtrite SK900 Weir Door – Replacement Spare Part (PWD509)

Replace the weir door on your Filtrite SK900 skimmer box with this replacement weir door flap, supplied complete with hinge. The SK900 weir door is very similar to the SK950 door — measure your existing door carefully before ordering to confirm the correct fit. May have PWD509 stamped on the door.

Specifications

• Part Number: PWD509
• Width: 232mm
• Height: 140mm
• Includes: Weir door flap with hinge
• Suits: Filtrite SK900 skimmer boxes (very similar to SK950 — measure carefully)
• Barcode: 890023

Other Skimmer Weir Doors

Not sure if this is the right door for your skimmer? Browse our full range of skimmer spare parts including weir doors for all major brands.

Frequently Asked Questions

What is a skimmer box weir door?

The weir door is the flap inside your skimmer box that controls water flow into the skimmer basket. It allows surface debris to enter while preventing backflow when the pump is off. A damaged or missing weir door reduces skimmer efficiency and can allow debris to return to the pool.

Will this fit my SK950?

The SK900 and SK950 weir doors are very similar but not always interchangeable. Measure your existing door carefully — the SK900 door is 232mm x 140mm. If your door measures differently, check our other skimmer weir door listings.

How do I know if I need to replace my weir door?

Replace your weir door if it is cracked, warped, missing, or no longer swings freely. A faulty weir door will reduce surface skimming performance and may allow debris to bypass the basket.