"solar filter"

Ideal for vacuum filtrations under both high and low water pressure.

This lightweight polypropylene pump provides a constant vacuum when hooked to a standard faucet; it operates efficiently with water pressures as low as 7.5 psi for minimum water consumption. It has a maximum free-air pumping capacity of 11.5 liters per minute at a water-flow rate of 6.5 liters per minute. Ultimate vacuum: 28.5" Hg. Supplied with integral check valve, 3/8" NPT connecting thread, and 4 3/4" length of tubing for insertion in discharge end.

Because fumes and corrosive filter agents do not affect this aspirator, it can be used safely with bases, acids, and strong chemicals. The pump fits any standard laboratory faucet and accepts tubing up to 9.5mm ( 3/8") ID. Operates efficiently on normal water pressure above 11 psi.

More economical than an electric vacuum pump.

Easy-to-use hand vacuum pump without gauge.