Norgren. Pneumatic Pressure Regulator, 1/4" PTF, 10psi, 11 Series. each. ADD TO CART. Norgren. Regulator, 1/4" PTF, 15 scfm, Relieving Diaphragm, Gauge, 1 10 psig, R07 Series. each. ADD TO CART * Products listed as "People Also Bought" are not recommended accessories and may not be compatible with the primary product.