Details: SIGHT GLASS sight glass / moisture indicator specifications include: variety of fitting types (Male Flare SAE, Male/Female Flare SAE, and Sweat ODF), unit sizes range from 1/4 to 7/8, construction plated steel, copper and brass fittings, and designed to piece with o-rings. R-410 compatible. PRODUCT MODELS Model Size Connection SG-38S 3/8 " Sweat
