ECOpure Spa-quip Blue Lock Ring

Maintain a secure, leak-free seal in your Davey Ecopure CF or Spa Quip cartridge filter with the ECOpure Spa-quip Blue Lock Ring. Designed specifically for 251mm diameter cartridges, this replacement part restores filtration performance while reducing the risk of water bypass and downtime.

What this lock ring does

Key function: holds the cartridge firmly in place within the filter housing, creating a tight seal that prevents leaks and ensures consistent filtration. The bright blue color makes routine inspections quicker, so you can spot wear or misalignment at a glance and keep your spa running smoothly.

Compatibility & fit

This lock ring is a direct replacement for 251mm diameter ECOpure CF and Spa Quip cartridge filters. It matches the original geometry and seating surface to deliver a reliable, secure fit with minimal effort during replacement. No guesswork is needed—it's built to align with your existing filter assembly for straightforward installation.

Installation & maintenance tips

• Power off the spa and relieve any system pressure before starting.
• Remove the old lock ring and cartridge, then clean the seating surface to remove debris that could compromise the seal.
• Position the ECOpure Blue Lock Ring and tighten by hand until snug. Avoid over-tightening to prevent damage to the housing or ring.
• After installation, run the system and check for leaks around the filter housing during a normal operating cycle.

Why this lock ring stands out

• Precise compatibility: tailored for 251mm ECOpure CF and Spa Quip cartridges ensures a dependable, airtight seal.
• Visible, quick inspections: the distinctive blue ring simplifies maintenance checks and early leak detection.
• Reliability under spa use: engineered to perform consistently through hot tub cycles and typical sanitization routines, helping protect water quality and filtration efficiency.

Ideal for

Hot tub and spa owners who rely on Davey Ecopure CF or Spa Quip cartridge filters with a 251mm diameter and want a purpose-built replacement part that minimizes downtime and maintenance headaches. This is the practical choice for preserving filter performance and ensuring a dependable seal between service intervals.

Use cases & practical scenarios

• Replacing a worn or damaged lock ring during scheduled spa maintenance to restore a reliable seal.
• Upgrading an aging filter assembly with a dedicated part that matches the original specifications, reducing the risk of fitment issues.
• During filter cartridge replacement, ensuring quick, gap-free sealing to maintain optimal water clarity and filtration efficiency.