Cartridge Filter Lid Trimline MK3 White Oring

Introducing the Cartridge Filter Lid Trimline MK3 with White O-ring—a purpose‑built upgrade for Trimline cartridge filters. Designed for a precise 214mm outside diameter, this lid pairing combines a durable white O-ring with trusted locking rings (62024) to deliver a reliable seal and straightforward maintenance. For those upgrading from MK2, there’s also a larger 220mm option (MK2, part 62020) with its own white O-ring to ensure you always have the right fit.

• Exact 214mm outside diameter lid for Trimline MK3 cartridges, paired with a white O-ring for a secure, watertight seal.
• New locking rings available (62024) to keep the lid firmly in place during operation and handling.
• Alternative MK2 option: 220mm lid (62020) with white O-ring for compatible sizing when upgrading or replacing older systems.
• Eliminates common lid‑removal frustrations: no bars or screwdrivers required, and no more broken handles.
• For stubborn lids, use a dab of lube-It silicone gel to reduce friction and ease removal without damage.
• Effortless removal method: remove the lock ring, place a heavy towel over the top, and start/stop the pump to lift the lid with minimal effort.

Who this is for: pool and spa maintenance pros, DIY homeowners, and service technicians who want a dependable, user‑friendly way to service Trimline cartridge filters without the usual wrestling and tool fuss. This MK3 lid solution is built to simplify routine cleanouts, reduce downtime, and protect handles from breakage—enabling quicker filter maintenance and more consistent filtration performance.

Practical notes you’ll value in everyday use:

1. Match the lid to the correct model: MK3 = 214mm OD; MK2 = 220mm OD. If you’re unsure, verify the model tag on your filter housing before ordering.
2. Keep a white O-ring in place to maintain a proper seal and prevent leaks during filtration cycles.
3. Locking rings (62024) are available to ensure a secure fit; use them as the standard for a reliable seal.
4. For especially tight lids, apply a small amount of lube-It silicone gel to help achieve smooth removal without twisting or prying.

With the Trimline MK3 cartridge lid, you gain a practical, reliable solution that reduces maintenance hassle and protects components from damage. Add this essential upgrade to your pool or spa filtration setup and experience smoother lid removal, fewer tool-pry incidents, and dependable performance across filtration cycles.