Sintered pressure snubber increases gauge readability by smoothing out pressure surges, pulsations and spikes. This eliminates instrument failure due to pressure shock. Snubbing action is achieved by utilizing a corrosion resistant 316 stainless steel sintered disc. Provides long service life with no moving parts to wear out. Grade C disc is used in water and light oil applications. Made of brass. 1/4" NPT male. 0.812" Hex. 0.56" Thread length. 1.60" Height.