Installing a heat pump/hybrid WH in my shop, using a combination of Pex and copper. I came across a video showing a very clean installation and am looking to replicate it. The only piece I'm not sure of is circled in the attached photo. Is it a back-flow preventer? Not sure why it is installed...
Everything said so far has been right on the money. I would also add that all six sides should be primed and/or painted before installation and install with a 1/8" (+/-) gap between panels. I used dimes for spacers.
Bought 4 of these today. 27 were in stock. According to Brickseek they are on clearance @ $6.07. Website shows $34.98. Went to store and the shelf price indicated $6.07: Lithonia 4' LED Shop Light
Edit: Not sure why link is re-directing to Lowe's home page. Search "Lithonia Item # 1033999 to...