Shower Adapter (Fits Base Camp PRO and Gravity Camp) With this small, handy shower adaptor, you can transform the Katadyn Base Camp Pro 10L and the Katadyn Gravity Camp 6L gravity filter into a refreshing outdoor shower. When transition from a water warehouse to a shower, remove the filter element and screw on the shower adaptor. Fits standard 63 mm wide mouth openings. Measures 3" x 2.4" Dia. Weighs .10 lbs.