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.
Part number SL4-750:
750cc (71 lb/hr), High Impedance, Top-Feed. You're welcome.
I'm thinking he means now as I have them after they were used! Really and truely if I spent money to have them flow tested and cleaned...they would be full price.