Viega 25236 MegaPressG 45° elbow Smart Connect technology Carbon steel, 3/4'' x 3/4''

The MegaPressG 25236 is a 3/4 inch by 3/4 inch elbow, so both ends take 3/4 inch pipe. It is a press fitting with a press connection on each end (P1 x P2), meaning both sides are made with a press tool rather than threaded or welded. If one leg of your run is a different size, this fitting won't reduce for you; you need a matching 3/4 inch on both sides.

Carbon steel. The 25236 is a carbon steel MegaPressG fitting, made in Germany, which means it is intended for black iron / carbon steel pipe systems rather than copper or stainless runs. If your existing line is carbon steel pipe, this matches the base metal and avoids a dissimilar metal joint at the fitting.

That is exactly what the 25236 is for. A pair of 45s lets you jog around an obstruction with a shallower change of direction than stacking 90s, and with press fittings you are not cutting threads on site for each turn. Each 25236 handles one 45 degree turn on 3/4 inch pipe, so an offset takes two of them plus the length of pipe between. Both ends press, so plan your pipe cut to land where you can get the press jaw around the fitting.

The 25236 elbow measures 3.709 inches long, 2.587 inches wide, and 1.492 inches high. Those are the fitting's own dimensions, before you account for the press tool jaw, which needs clearance around the fitting body on both ends to complete the joint. In a tight joist bay or against a wall, the jaw swing is usually what decides the install, not the fitting itself.

No threading and no welding. The 25236 joins by press on both ends, so the pipe gets cut square, deburred, and marked for insertion depth, then the fitting is pressed with the correct jaw. That is what makes MegaPressG worth using on occupied buildings, since there is no hot work permit and no open flame in the ceiling. You do need the press tool and a jaw sized for 3/4 inch; the fitting is not usable without one.

Order Viega part 25236. That is the MegaPressG carbon steel 45 degree elbow in 3/4 inch by 3/4 inch. It is a single configuration, so there is no finish or end-option to specify when you order it, which makes it straightforward to standardize on across a building's gas piping.

Smart Connect is Viega's feature that lets an unpressed connection be identified during testing, so a joint you missed shows itself instead of hiding in the wall. It doesn't change the install sequence: cut, deburr, mark depth, insert to the mark, press. What it changes is your pressure test, which becomes a real check on whether every joint got pressed on a run with dozens of fittings.

Each 25236 elbow weighs 0.41 lbs. On an overhead 3/4 inch run the fitting weight is minor next to the filled pipe, but it matters when you are tallying a long assembly of fittings for hanger loading or figuring shipping weight on a large fitting order.