When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
I used a 4 1/2in angle grinder, 3in air grinder and sawzall to get my old DP out. Just depends on which part of the pipe you're cutting as to which tool works best. Clearancing for the new DP is pretty easy, compared to getting the old one out.
