Comet
Comet P40 Upgrade Kit P40UK (Original P40, 1/2"→3/4" bypass)
Comet P40 Upgrade Kit P40UK (Original P40, 1/2"→3/4" bypass)
SKU:P40UK
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Product Variation Notice
Product images, specifications, components, colors and packaging are provided for reference and may change without notice due to manufacturer updates or substitutions. The item you receive may differ slightly from the photos or description. Questions? Call us at 352-571-4654.
The P40UK upgrade kit follows Comet's recommendations for running an Original P40 soft-wash pump (1/2" bypass) with a proportioning system. It adds a check valve between the pump outlet and the hose reel and converts the bypass from 1/2" to 3/4" crushproof hose, which together help relieve the manifold pressure spikes that can crack P40 parts.
This upgrade kit is for the Original P40 with a 1/2" bypass (pre-2024 redesign). It converts the bypass from 1/2" to 3/4" crushproof hose. The Current Model P40 already uses a 3/4" bypass, so this kit is not needed on those pumps. Check your bypass size and the Comet P40 breakdown sheet before ordering.
What's Included
- Bypass: brass fitting to convert 1/2" bypass to 3/4"; 3/4" FPT 90° hose barb; 25 ft of 3/4" crushproof hose; 1" MPT × 3/4" hose barb for the proportioner block; 2 stainless hose clamps
- Outlet to reel: 1" G fitting for the pump outlet; 1" check valve; 1" × 3/4" 90° hose barb; 1/2" NPT to 3/4" poly hose barb for the reel; 2 stainless hose clamps
- Thread tape
Specifications
| Brand | Comet |
|---|---|
| SKU | P40UK |
| Bypass hose | 25 ft × 3/4" crushproof |
| Use | Original P40 with 1/2" bypass / proportioning systems |
Install the check valve between the hose reel and the pump outlet as Comet recommends.
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