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Stealth P40/20 Gas Diaphragm Soft Wash System with Honda GX200 – P40-GR-CBP


Available for Purchase!

SKU: P40-GR-CBP Categories: , ,


Stealth P40/20 Gas Diaphragm Soft Wash System with Honda GX200 – P40-GR-CBP

Pre-Order now for January 2021 Release!

This system features a Honda GX200 with a Comet P40/20 Series Triple Diaphragm Pump. Replaces ZETA 40 Udor pumps, plastic, or plastic coated diaphragm pumps. The P40 is a newer, upgraded version of the popular and best-selling Diaphragm Pump, the P36GR. This unit is Pull Start (unlike pictured)! For Electric Start please see P40-GR-CBPE.

The P40/20 Comet Diaphragm Pump comes with a Gearbox equipped to clean roofs and surfaces with low pressure impact and halts the growth of algae, mold, & mildew on the roof. This is the best Soft Wash Gas Diaphragm System you can get. If you want only the bare pump – instead of mounted on a 6.5 HP Honda GX200, please see C-6158000300 / 6158.0003.00.

Ideal for cleaning roofs and surfaces with a water and chemical mixture that cannot handle the high pressure impact. This pump cleans algae, mold, & mildew off roofs, siding, & sidewalks makes cleaning more efficient.

System Features

  • Honda GX200 6.5HP
  • Chemical Resistant Wet Parts Compatible with Aggressive Soft Wash Chemicals
  • Single Piece Manifold For Reduced Leak Points & Quick Service
  • Increased Flow and Pressure (11 GPM @ 300 PSI)
  • Molded Inserts That Cannot Come Loose
  • Bolt-On Regulator To Prevent Leaks When Adjusting Pressure Knob
  • Aluminum Head Plates To Prevent Flexing of the Heads
  • Metal Oil Cup For Impact Resistance
  • Ideal Application: Professional Soft Washing (Mold, Bacteria, Mildew, Moss, Fungus, Algae)
  • 30.4 fl oz Pump Oil Capacity

Pump Specifications

Max GPM 11.5
Max PSI 290
Max rated speed (RPM) 550
Max fluid temperature (F) 140 F
Diaphragms 3 (Viton)
Materials Polypropylene / Stainless Steel
Inlet 1 in.
Outlet 3/4 in.
By-Pass 1/2 in.


P40 Breakdown

P40 Sales Sheet

P40 Data Sheet



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Prop 65 Warning!

This product can expose you to chemicals which are known to the State of California to cause cancer.