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. 1/2" NPT male. 1.125" Hex. 0.625" Thread length. 1.875" Height.