Comet 1800.0028 Diaphragm for MC25 Pump

Comet 1800.0028 Viton Diaphragm for MC25, MP30 & APS41 Pumps

The Comet 1800.0028 Diaphragm is a replacement black Viton rubber diaphragm for Comet MC25, MP30, and APS41 diaphragm pumps. It helps maintain proper pumping operation by separating the spray solution from the pump's internal oil chamber.

Viton (FKM) rubber provides chemical resistance for many spraying applications. Replace diaphragms that show signs of cracking, hardening, swelling, or other damage. Always verify compatibility with the chemicals being pumped.

Important: Each pump requires 2 diaphragms. This product is sold individually, so order a quantity of 2 when replacing both diaphragms.

Specifications

Parts Diagram & Instruction Manual

Download Comet MC25 Diaphragm Pump Parts Breakdown (PDF)

Download Comet Diaphragm Pump Instruction Manual (PDF)