This is a compatible pump which fits almost any gallon size bottles. It has stainless steel spring for long lasting durability and an anti-siphon chamber to prevent leaking. Enjoy easy dispensing of your favorite oils, gels and lotions. Fits most 1 gallon biotone oils, gels and lotions. Our bottle pump is made mostly of polypropylene (recycle code 5) plastic. Made in usa specifications: – Pump length (each): 16 in – lid diameter: 1.5 in – from lid to bottom length: 11 in.