Pricing for the RP 251 varies by catalog/configuration (tool only, kit with jaws, sizes, etc.) so RIDGID sells these through distributors rather than listing a single retail price. For current pricing, availability and lead times contact a RIDGID distributor (use the Ridgid “Where to Buy” locator) or contact RIDGID/ProTools Customer Service or RIDGID Customer Support at 844-789-8665. Resellers may list pre‑orders, but official pricing and stock should be confirmed with a distributor or customer service representative.

The RP 251 will press copper, PEX, multilayer, MegaPress (black iron/carbon steel) and refrigeration (RLS) fittings, but you must use the correct compact‑series jaws and matching sealing rings for each fitting type. Standard compact copper jaws are for copper fittings, compact ASTMF F1807 jaws are for black PEX (black copper rings), PureFlow compact jaws are for Viega stainless PEX rings, MegaPress compact jaws/rings are required for black iron/carbon steel, and RLS compact jaws are available for refrigeration fittings. Jaws and rings can be ordered separately or as part of kits designed for the specific fitting system.

Many accessories are interchangeable but some are not. The RP251 accepts the same compact‑series jaws and the same 12V Advanced Lithium Ion batteries used on other RP series plumbing press tools (for example jaws and batteries from an RP241 will work on an RP251), but tool cases are model specific so an RP241 case will not fit the RP251. Ring kits such as the C1 compact ring kit for tight spaces are compatible with the RP251. Note that chargers and batteries for RIDGID plumbing press tools are not interchangeable with RIDGID general power tool batteries/chargers; verify battery/charger compatibility by tool family and part number before purchase.

The RP251 uses the 12V Advanced Lithium Ion battery (catalog number 55183). The tool does not show a continuous percentage level; it indicates battery status with LEDs and warnings. A low‑battery condition is signaled by a yellow blinking LED, and when the battery is too depleted to complete a press the blinking will change to red/yellow. A blinking red LED during a press can also indicate the jaw pin is not fully inserted, and cold or low batteries may cause LED warnings and prevent a press cycle. Use the correct charger/battery pair for the plumbing tool family; power‑tool chargers are not interchangeable with plumbing tool batteries.

The RP 251 delivers 5,400 lbs (24 kN) of ram force, completes a crimp in approximately 3-4 seconds, and achieves 150+ presses per charge on its 12V Li‑ion battery. It features a brushless motor rated for over 60,000 press cycles and has no scheduled maintenance, an ergonomic inline design with a forward‑positioned trigger to enable one-handed operation, a 360° head swivel for maximum accessibility, and an enhanced LED light ring.