Aqualon 11781 – Check Valve Repair Kit – Replaces OMAX 301353
Aqualon Part Number: 11781
Replaces OMAX Part Number(s): 301353
Other References: None verified
Stock Status: In stock (Europe) – Estimated 2 week lead time. Ships from Melbourne, Australia.
Overview
The Aqualon 11781 – Check Valve Repair Kit – Replaces OMAX 301353 is a service kit used to rebuild the check valve assemblies found in legacy OMAX and MAXIEM direct-drive pump systems. It contains the wear components required to restore proper sealing and flow control inside the pump’s inlet and outlet check valve assemblies.
Purpose / Why It Matters
Check valves are critical to maintaining stable pressure and efficient pump operation. Replacing worn components restores correct valve sealing, improves pressure consistency, and prevents backflow that can reduce cutting performance or cause premature wear in other wet-end parts.
Compatibility
This kit replaces OMAX 301353 and is compatible only with assemblies and pump models that specifically list that OEM part number.
Per verified OMAX family rules, compatibility applies to legacy OMAX direct-drive and MAXIEM pumps.
No EnduroMAX compatibility is implied.
Why Choose Aqualon
The Aqualon 11781 follows the verified dimensional and functional requirements of OMAX 301353, ensuring correct fit and predictable valve performance when rebuilding check valve assemblies on legacy OMAX and MAXIEM direct-drive pumps.






