5/8" Soaker Hose (820 OD) can be identified by it's " Green Stripe ". Bulk Soaker Hose offers the perfect delivery of water to plants. Made from recycled materials, 70% from recycled rubber and 30% recycled polyethylene products that are re-pelletized for use in the process. Being "bulk" Soaker Hose means there are NO fittings on the hose. In turn, you can cut to desired lengths to create your own custom system. You can run in lengths up to 250', but not to exceed 500' off one water supply. GPH is approx. 224 gallons per hour, per 100' at 25 psi, depending on inlet pressure & water hardness. Shorter lengths will have an increase in gph Soaker Hose should be used on flat surfaces not exceeding a 2' rise over 100'. A pressure regulator is a MUST since Soaker Hose is designed to work at low pressure 25-30 psi. Another item you should use would be a 200 mesh stainless steel screen filter to help separate particles and prevent the hose from clogging. Areas with hard water consider using a calcium filter as well. Be sure this is the size you want, if you are not sure PLEASE message us.