Groco ARG-1000-P Bronze Strainer, 1 in NPT, Plastic Basket
- Brand:
- Groco
- Part no:
- ARG-1000-P
Image: Groco
Where to buy
Specifications
- Connection
- 1" NPT, internal thread
- Mounting
- Reusable strap
The ARG-1000-P is a bronze raw water strainer from Groco with a plastic basket. It has 1 inch NPT ports threaded internally and stands 9 inches tall. The basket has 0.077 inch holes and 45% open area, giving a screen area 29 times the pipe area. There are no tie rods or gaskets, since O-rings seal the mating surfaces. The retainer cap screws on and off without tools, and a reusable strap lets you lift out the whole strainer.
Our take
The screw-on retainer cap is the feature you will use most: it opens without tools, so checking the basket is quick. The 29:1 screen to pipe area ratio means the basket has plenty of area compared with the 1 inch pipe.
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.

