All Size Supply has the high quality fittings you need in the quantities your project requires, at competitive prices that will fit your budget. As a full-line distributor, our inventory includes a vast selection of fittings, including standards and specials, English and metric sizes, and all materials and grades. For stainless steel weld fittings, hydraulic adapters, flanges, camlock fittings, and much more, we are your number one source for fittings and related products.