Perko 493 Series Intake Water Strainer, 3/4" Pipe
- Brand:
- Perko
- Part no:
- 0493005PLB
Image: Fisheries Supply
Where to buy
Specifications
- Connection
- 3/4" pipe
- Basket
- 304 stainless steel
- Open area
- 46%
- Mounting
- Universal mounting lugs cast into both sides
Manuals
- Installation guide (PDF)productimageserver.com
- Installation guide (PDF)180sails.com
The Perko 493 Series strainer in the 3/4" pipe size measures 8-3/8" x 4-1/2". It has a 304 stainless steel basket, screen holes of 0.077" and 46% open area, and a cast bronze cover. Universal mounting lugs are cast into both sides. Hinged lugs on the cover make basket cleaning easy, and a drain plug in the bottom casting clears sediment and drains the unit for winterizing.
Our take
Screen holes of 0.077" give this 3/4" Perko strainer 46% open area, and the maker points to its 500 Series for applications needing higher flow rates. The hinged cover lugs make cleaning the basket easy.
From our buying guide
Makers disagree on where to mount a strainer: Groco's installation sheet recommends above the waterline, and Westerbeke's generator manual says at or below it. Perko says to consult the engine manual for pipe size and strainer location.
Check before you buy:
- It matches your pipe size, since Perko says reducers may cause engine damage and are not recommended.
- You can reach the basket, since Groco says to inspect and clean it frequently.
- Open-area figures are compared within one maker, since each states its own measure.

