GoatThroat Pneumatic Safety Pump for Sodium Hyroxide is made with Santoprene and EPDM seals and includes a 38″ single siphon tube.   Please see a version of this pump in this video.

This pump gives controlled flow and accurate measuring. It is like PPE –personal protective equipment – no spills, no splashing, no vapors.  For viscosities like water, dispensing up to 4GPM. Flow is good up to 270 centipoise. INCLUDES 1 pump,  siphon tube stinger up to 38″, barrel standoff with 2-inch pipe thread fitting fits most barrels, 3 gram packet of Molykote 111 grease and single medium drum seal which fits the barrel.

5 STAR REVIEW: Business Type: Manufacturing   We’ve tried many different types of pumps and overall the GoatThroat has been best thanks to great support and the material selection of their product.—Michael Nagel, Engineer  See all reviews.