Bests & Worsts Reviews from Amazon

The housings are cheap and perfect for what I used them for: I bought 3 of these and modified them by adding gauges to the top of the housing. Gauges are the only reasonable way to tell when the filters need replacing. I started by realigning the top bracket with the pressure relief valve (picture 1 and 2). That gave me a good template on the opposite side to drill a 7/16 hole (use a drill press to get a straight hole - picture 3). Use a 1/4 npt tap in the hole Hanson 8203 Tap 1/4-18 Npt Taper for Tap Die Extraction (picture 4) The finished product (picture 5) with the hole drilled and tapped. Connect the three housings using two LASCO 17-8669 3/4-Inch Male Pipe Thread Brass Hex Nipple Install gauges. I used Winters PEM Series Steel Dual Scale Economical All Purpose Pressure Gauge with Brass Internals, 0-100 psi/kpa, 2" Dial Display, +/-3-2-3% Accuracy, 1/4" NPT Bottom Mount you could use fluid filled gauges, but I didn't see the benefit of the additional cost. Using a good thread seal - NOT tape - such as Rectorseal 23631 1/4 Pint Brush Top T Plus 2 Pipe Thread Sealant The final product pictures 6 and 7. Total cost around $100 and a small amount of work. It beats anything else you will find.