CMA 3/8 x 3/8" Check Valve top-brands/trending-parts then fit the spring and

then fit the spring and basket (M10 thread)

Zero Compromise

or you can add Kalita 185 Paper Filters to produce an even cleaner taste

Use a slightly finer grind of coffee

AeroPress delivers a consistent and satisfying cup with minimal fuss

CMA 3/8 x 3/8" Check Valve top-brands/trending-parts then fit the spring andCMA 3 8 x 3 8" Check Valve Boiler check valve in the less common 3 8" x 3 8" size, built for CMA based Astoria espresso machines. Most Astoria models use the more common 1 4" x 3 8" check valve instead this one is for older machines that specifically call for the larger 3 8" x 3 8" size, and a handful of older units use both sizes together. COMPATIBILITY Fits: Older CMA based Astoria espresso machines requiring the 3 8" x 3 8" check valve Related