💧 Bulkhead Adapter Nut, Pentair PacFab Purex
Made by Purex/Pentair, manufacturer part number 274440. It is listed for the equipment shown below, so check the model on your own unit against that list. If your old part carries one of the cross-reference numbers further down, this is listed as its alternative.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Purex/Pentair |
| Manufacturer part number | 274440 |
| Catalog description | Bulkhead Adapter Nut, Pentair PacFab Purex |
✅ Listed for
- Pentair Minimax NT Std 200-400 Heater w/ 6800 cntrl
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| Pentair | 274440Z |
California Residents WARNING: Cancer and Reproductive Harm
Exploded parts diagrams: This part is shown as item #15 on the Pentair PacFab Full-Flow Valves D.E; item #15 on the Pentair PacFab Full-Flow Valves Sand; item #22 on the Pentair MiniMax CH 150–400 Gas Heater; item #22 on the Pentair MiniMax CH 150 IID Gas Heater exploded parts diagrams.
🔧 Pentair PacFab Full-Flow Valves D.E. – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| 19 | Cap Insert, Pentair PacFab Full Flow D.E./Sand Valve, Bottom |
| 15 | Bulkhead Adapter Nut, Pentair PacFab Purex ◀ this part |
| 14 | O-Ring, 2-3/8" ID, 3/16" Cross Section, Generic |
| 13 | Bulkhead Adapter Kit, Pent PacFab Full Flow D.E./Sand Valve |
| 12 | 26-110-W041K12 |
| 11 | Shaft Assembly, Pentair PacFab Full Flow D.E./Sand Valve |
| 10 | Spring, Pentair PacFab Full Flow D.E./Sand Valve, .24×1.0 |
| 9 | Spring, Pentair PacFab Full Flow D.E./Sand Valve, .42×1.0 |
| 8 | Waste Seal, Pentair PacFab Full Flow D.E./Sand Valve |
| 6 | O-Ring, 3-3/4" ID, 3/32" Cross Section, Generic |
| 5 | O-Ring, 3/4" ID, 3/32" Cross Section, Generic |
| 4 | Cap Insert, Pentair PacFab Full Flow D.E./Sand Valve, Top |
| 3 | Cap Nut, Pentair PacFab Full Flow D.E./Sand Valve |
| 2 | Screw, Pent/Ortega 2 Port 90deg/2 Port/3 Port Valves,8 x 5/8 |
| 1 | Handle, Pentair PacFab Full Flow D.E./Sand Valve |
🔧 Exploded diagram and parts
This part belongs to the Pentair PacFab Full-Flow Valves D.E. assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 9 | ![]() |
Spring, Pentair PacFab Full Flow D.E./Sand Valve, .42×1.0 | 271065 | 5 in stock | $7.17 | Add to cart |
| 10 | ![]() |
Spring, Pentair PacFab Full Flow D.E./Sand Valve, .24×1.0 | 270006 | 1 in stock | $5.35 | Add to cart |
| 13 | ![]() |
Bulkhead Adapter Kit, Pent PacFab Full Flow D.E./Sand Valve | 270004 | 5 in stock | $68.90 | Add to cart |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
![]() |
Silicone Based Lubricant 1oz 00150 | 00150 | 343 in stock | $5.26 | Add to cart |
![]() |
O-Ring Chart, Aladdin | MG1 | 17 in stock | $83.58 | Add to cart |















