i have a few rolls of each .35 cents a foot for the 1/2 or 5/8 or buy the whole roll for 25.00. the 3/4 is .40 cents a foot or 15.00 for a 50 foot roll. its black tubing so inhibits algae growth 3/4 outside and 5/8 inside or 5/8 outside and 1/2 inside or 3/4 inside and 1" outside. same thing you see online for around .79 to .89 and 1.09 a foot
aaron