Waterway - Top-Load Spa Filter Lid with Handle - 511-1000

Waterway – Top-Load Spa Filter Lid with Handle

The Waterway 511-1000 is a replacement hot tub filter lid with handle for Waterway Top-Load filtration systems and some other Waterway filters. It closes the top of the cylinder that contains the filter cartridge and is held in place with a lock ring. Note that the lid is supplied without its air-relief plug and o-ring.

Compatibility with Waterway Top-Load filters

This spa filter lid fits Waterway Top-Load filtration systems, as well as some other Waterway filters. In these systems the lid seals the top of the cylinder that houses the filter cartridge.

The systems use the following cartridges:

• PRB25
• PRB50
• PCAL75
• PCAL100

Fitting and dimensions

Compare these measurements with your existing lid before ordering a replacement:

• Thickness: approximately 70 mm
• Outside diameter: 158 mm
• Inside diameter: 142 mm
• Outside diameter of the male plug that fits inside the top of the cartridge: 53 mm

The lid is secured with a lock ring, so check that your filter housing uses this type of closure.

What is included and sold separately

The filter lid 511-1000 is supplied without its air-relief plug and o-ring. If you are replacing a damaged lid, you may need to reuse these parts from your old lid or order them separately.

The filter lid o-ring is also available separately, which is useful if the seal around the lid has worn but the lid itself is still in good condition.

How to choose the right part

Waterway lists this lid under part number 511-1000. Check the number against your old lid or your filter documentation, then confirm the outside diameter of 158 mm and the plug diameter of 53 mm. These two measurements help you make sure the lid will sit correctly on the cylinder and inside the top of the cartridge.