Waimana Big Blue Jumbo Housing O-Ring - Replacement Seal for Waimana Filter Systems NZ

Replacement O-ring for Waimana Big Blue jumbo filter housings. Keeps the housing sealed and prevents leaks after cartridge changes. Select your quantity from the dropdown.

Compatible with Waimana whole house filter systems using Big Blue jumbo housings.

Key specs at a glance

• Suits: Waimana Big Blue jumbo filter housings
• Available in: 1-pack, 2-pack, 3-pack
• Sold as: Consumable — no warranty

When to replace

Replace the O-ring if you notice a drip or leak around the housing after a cartridge change, if the existing O-ring is visibly cracked, flattened, or damaged, or as a precaution when doing an annual cartridge replacement. Applying a small amount of food-grade silicone grease to the O-ring before reassembly helps it seat correctly and extends its life.

Frequently asked questions

How do I know if my O-ring needs replacing?

If water is dripping from the housing after a cartridge change and the housing is tightened correctly, the O-ring is usually the cause. Inspect it for cracks, flattening, or deformation — if it looks damaged or compressed, replace it.

Does it fit all Waimana housings?

This O-ring is designed for Waimana Big Blue jumbo filter housings. If you're unsure whether it suits your specific housing, get in touch before ordering.

Should I use lubricant on the O-ring?

Yes — a small amount of food-grade silicone grease applied to the O-ring before reassembly helps it seat correctly, prevents pinching, and extends its life. Do not use petroleum-based lubricants.