Sta-Rite C1-216P Diffuser
Sta-Rite lists the C1-216P as the diffuser in the Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps. It works together with the impeller and volute to build pressure, so a damaged one is worth checking any time a pump loses flow but the motor and impeller both test out fine.
Because the diffuser bolts or seats directly against the pump body, fit and orientation matter as much as the part number. Match this part to the exact model being serviced and check that any sealing o-ring or gasket is also in good condition before reassembly.
Key Features
- Genuine-fit Sta-Rite C1-216P replacement diffuser
- Built for Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Directs impeller output into a smooth, pressurized flow toward the discharge
- Direct fit replacement for the original Sta-Rite part
Applications
- Restoring lost pressure on a Sta-Rite pump with a cracked or worn diffuser
- Rebuilding Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Routine wear-part replacement during a pump rebuild alongside the impeller and seal
- Fixing an internal leak or recirculation loss inside the pump body
Specifications
- Brand: Sta-Rite
- Manufacturer Part Number: C1-216P
- Part Type: Diffuser
- Fits: Sta-Rite Dyna-Glas/Dyna-Max Series in-ground pool and spa pumps
- Quantity Per Pump: 1
- Condition: New
Frequently Asked Questions
Q: Can a cracked diffuser be glued or patched?
No. A cracked diffuser should be replaced rather than repaired, since a patch will not hold up to the pressure and vibration inside a running pump.
Q: How do I know if my diffuser needs replacing?
Reduced pressure or flow with the motor and impeller both in good condition is the main sign, along with visible cracks, chips, or wear where it seats against the pump body.
Q: Should I replace the impeller at the same time?
Inspect it while the pump is open. The diffuser and impeller wear under the same conditions, so it is common to replace both during one rebuild rather than opening the pump twice.
Q: Does this come with a new o-ring or gasket?
This listing is for the diffuser itself. Check the sealing surface on the old part and order a matching o-ring or gasket separately if it is worn, cracked, or was damaged during disassembly.
Not sure this is the right part? Send us a Picture of the Pump Plate on your pump and the CLR Marine team will confirm the correct diffuser.
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