Helium At Sacramento Balloons we rent and sell helium tanks. We offer five day rentals with six different tank sizes to choose from. If you choose to buy a helium tank, they are sold empty and without a regulator. The prices are as follows: Sales: 20 c.f. (Approx. 40-11" Balloons) $75.00 55 c.f. (Approx. 100-11" Balloons) $149.00 110 c.f. (Approx. 200-11" Balloons) $169.00 150 c.f. (Approx. 300-11" Balloons) $185.00 250 c.f. (Approx. 500-11" Balloons) $220.00 291 c.f. (Approx. 600-11" Balloons) $250.00 Rental: 20 c.f. (Approx. 40- 11" Balloons) $25.00 55 c.f. (Approx. 100-11" Balloons) $40.00 110 c.f. (Approx. 200-11" Balloons) $55.00 150 c.f. (Approx. 300-11" Balloons) $65.00 250 c.f. (Approx. 500-11" Balloons) $84.00 291 c.f. (Approx. 600-11" Balloons) $96.00