JaybirdTM Wide Mouth Canning Jar Hop Filter Kit - NPT Male Attachments with 64 Ounce Canning Jar. Inexpensive and efficient 304 stainless steel hop filter kit provides "hop back" filtration of leaf and pellet hops. Pack the jar with leaf or pellet hops (or a combination of both), thread on 1/2" NPT Female connections of your choice, and you're in business! Clear glass allows unobstructed view of the action going on! TO USE WITH PELLET HOPS you need to pack the top portion of the canning jar with stainless steel scrubbies (NOT INLCUDED). 2 external 1/2" NPT Male posts accept a huge assortment of standard 1/2" NPT Female couplings, opening up a whole world of inter-connectivity including cam lock and quick disconnect components. · Shorter NPT Male post on top of the lid is "liquid in" side. Feeds liquid to the bottom of the canning jar through the long dip tube · Slightly taller NPT Male post on top of the lid is "liquid out" side. HOW IT WORKS: Beer or wort gets fed into the hop filter through the shorter NPT Male post, travels down the long dip tube to the bottom of the glass jar. Pressure pushes the beer or wort through the hops, filtering the liquid and picking up hop flavor, color, and aroma. Perforated disk keeps hops from pushing into glass jar's neck. Liquid exits through the diagonal-cut short dip tube near the top of the filter and continues out of the jar through the slightly taller NPT Male post. SPECIFICATIONS: · 100% food grade silicone gaskets: · Top, larger gasket snaps onto and around solid lid portion, provides liquid and air-tight seal ON TOP of canning jar · Bottom, smaller gasket snaps onto and around perforated portion, provides a seal INSIDE the jar's mouth · Stainless steel 1/2" NPT Male posts accept standard 1/2" NPT Female connections. NOTE: Hops and stainless steel scrubby are for illustration purposes only, and are not included.