Union Fitting for MJB Pool Pump
The union fitting seal for your ACIS Weltico pool pumps
Restore a perfect seal on your pump’s union fitting
This union fitting gasket (O-ring No. 38, 62 mm diameter, 4.5 mm thickness) ensures a tight seal between the filter pump and its piping.
Over time, a hardened or cracked seal can cause leaks and air ingress, which prevent the pump from priming properly.
Replacing it restores a perfect seal and avoids having to replace the entire fitting.
This part is compatible with a wide range of ACIS Weltico pumps (see the list below).
Tip from the team: Lightly lubricate the new seal with silicone grease before reassembly—this makes installation easier and ensures an even better seal.
Description
A wear seal that can be replaced without changing the entire fitting
The union fitting gasket is one of the wear parts in a pool pump.
A worn gasket causes leaks at the fitting and prevents the filtration system from priming.
This O-ring allows you to restore the seal on your union fitting easily and at a low cost.
Features
- Type: Union fitting O-ring (No. 38)
- Diameter: 62 mm
- Thickness: 4.5 mm
- Brand: ACIS Weltico
- Manufacturer Part Number: A-OR-62-4-5
Compatible pumps
- NCC pump
- NCC Pump (pre-2010 models)
- MGD Pump
- MJB / JX Pump
- MPB / Girotec Pump
- PHT / Solubloc Pump
- MPQ Pump
Good to Know
Check your pump model before ordering.
If in doubt, the part number or the pump's nameplate will help you identify the correct seal.