RV freshwater connections can use fittings that have similar nominal inch sizes but different shapes and sealing methods. The garden-hose coupling outside the RV is not the same as a push-to-connect CTS tube fitting behind the wall, and a 1/2-inch NPS swivel is different from a 3/4-inch garden-hose swivel. This reference separates city-water inlets, AquaLock plumbing adapters and sealing washers to help identify the correct component by part number.
Follow the connection from exterior hose to interior plumbing
Outside garden hose
Regulated wall inlet
AquaLock interior adapter
Choose by both ends of the fitting
| Part number | Connection 1 | Connection 2 or function |
|---|---|---|
| SHURflo 183-029-14 | 3/4-in female GHT | 1/2-in male NPSM; regulated city-water inlet with check valve |
| AquaLock 0959235 | 1/2-in CTS tube collet | 3/4-in female GHT swivel, straight |
| AquaLock 0959293 | 1/2-in CTS tube collet | 3/4-in female GHT, 90-degree elbow |
| AquaLock 0959085 | 1/2-in CTS tube collet | 1/2-in female NPS swivel, straight |
| AquaLock 0959090 | 1/2-in CTS tube collet | 1/2-in female NPS swivel, 90-degree elbow |
| AquaLock 0959111 | 1/2-in CTS collet accessory | Retaining clips, three-pack; not a fluid connector |
Do not infer a connection will seal merely because two parts share a 1/2-inch or 3/4-inch size. Check the original fitting's thread designation, seat, O-ring or washer and the installation's pressure limits.
SHURflo 183-029-14 regulated city-water inlet
This chrome-finish inlet combines a hose-facing connection, a pressure regulator rated at 65 PSI and a built-in check valve. It has a 3/4-inch female garden-hose swivel inlet and a 1/2-inch male NPSM outlet toward the RV plumbing. A separate Camco regulator can be used in other suitable arrangements, but should not be assumed necessary with this inlet without evaluating the whole system.
AquaLock adapters for garden-hose connections
AquaLock 0959235 is a straight 1/2-inch CTS to 3/4-inch female garden-hose-thread swivel fitting. The 0959293 provides a 90-degree option with the same general connection families. They are for compatible tubing and threaded hose connections, not push-on accessories that fit a propane quick disconnect or a standard handheld shower hose.
Interior NPS swivels and collet-retaining clips
AquaLock 0959085 and 0959090 connect 1/2-inch CTS tube to 1/2-inch NPS swivel fittings, straight and elbow respectively. A 1/2-inch NPS swivel must be matched to the original plumbing seat and threaded component. The 0959111 kit supplies three locking clips for the specified 1/2-inch collet fittings; it does not join two tubes by itself.
Hose washers are not push-to-connect tube seals
Camco 20153 is a 10-pack of ordinary self-locking garden-hose washers; 20183 is a three-pack of screened washers for compatible female garden-hose couplings. These washers help seal a hose-thread joint or screen debris but are not replacements for an AquaLock tube-fitting O-ring. Camco 40054 is a separate preset pressure regulator for a suitable hose connection.
Disconnect and depressurize the RV's water supply before inspecting connections. Follow the exact component manufacturer's tubing and thread requirements. UsedRVParts product conditions and quantities vary; viewing and pickup, where offered, are by appointment in Kelowna.