💧 Nut, Pentair American Products/PacFab, 1/4-20
Made by American Products, manufacturer part number 98211400. 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 | American Products |
| Manufacturer part number | 98211400 |
| Thread Pitch | 20 |
| Material | Stainless Steel |
| Nut Size | 1/4″ |
| Catalog description | Nut, Pentair American Products/PacFab, 1/4-20 |
✅ Listed for
- Pentair/American Products Titan SS Tank DE Filter
- Pentair/American Products Titan CM Comp Tank DE Filter
- Pentair/American Products Titan RPM & 5000 Series DE Filter
- Pentair/PacFab FNS Plus 24 36 48 60 SqFt DE Filter
- Pentair/PacFab Star Polymeric ST35 40 50 80 DE Filter
- Pentair American Products 1-1/2″ Side Mount Multiport Valve
- Pentair American Products Top Mt Clamp-on Multiport Valve 5/8 pos
- Pentair PacFab 2″ HI-Flow Valve
🔄 Cross-reference part numbers
These part numbers are listed as alternatives for this part.
| Brand | Part number |
|---|---|
| Pentair | 98211400Z |
Exploded parts diagrams: This part is shown as item #12 on the Pent Am Prod 2″ H & M Series Multiport Valves; the Pent Am Products Aqualumin/Aqualumin II Nicheless Lights exploded parts diagrams.
🔧 Pent Am Prod 2" H & M Series Multiport Valves – exploded parts diagram

The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Lid Assy, Pent Am Prod 2" M Valve, w/Rotor |
| – | Plug, Lasco, 2" Male Pipe Thread |
| – | Plug, Lasco, 2" Spigot |
| 16 | O-Ring, 5-5/8" ID, 1/4" Cross Section, Generic |
| 15 | Plug, Pent Am Prod 2" H & M/Top Mount Screw-On Valves |
| 14 | Sight Glass, Pent Am Prod 2" H & M/Top Mount Screw-On Valves |
| 12 | Nut, Pent Am Prod 2" H & M/Top Mount Screw-On Valves |
| 11 | Gasket, Pent Am Prod H & M Valve, 7-1/8"OD, 5 Spokes,Generic |
| 10 | 27-110-1266 |
| 8 | Spring, Pentair Multiport Valves, Top |
| 9 | O-Ring, 7/8" ID, 1/8" Cross Section, Generic |
| 8 | Spring, Pentair American Products Multiport Valves |
| 6 | O-Ring, Buna-N, 7-1/4"ID,3/32" Cross Section, Generic |
| 5 | Cover, Pentair 2" H and M Multiport Valve |
| 4 | Screw, Pent Am Prod 2" H & M/Top Mount Screw-On Valves |
| 2 | 27-110-1252 |
| – | Plug, Pentair American Products 2" H and M Valve, Slip |
| – | Plug, Pentair American Products 2" H and M Valve, PVC |
| 15 | Drain Plug, Pent Am Prod, Filter/Valve/Separation Tank |
| 14 | Sight Glass, Pent Am Prod 2" H & M/Top Mount Clamp-On Valves |
| 13 | 26-110-W021K13 |
| 12 | Nut, Pentair American Products/PacFab, 1/4-20 ◀ this part |
| 11 | Gasket, Pentair H & M Valve, 6-3/8"OD, 5 Spokes |
| 10 | Rotor, Pentair American Products 2" H and M Valve |
| 9 | O-Ring, Pent Am Prod H & M Valve, Rotor, O-276, blk |
| 8 | Spring, Pentair American Products 2" H and M Valve |
| 7 | 26-110-W021K7 |
| 6 | O-Ring, Buna-N, 6-1/2" ID, 1/8" Cross Section, Generic |
| 5 | Cover, Pentair American Products 2" H Valve |
| 4 | Screw, Pent Am Prod 1-1/2" Side Mount Valve,14-20 x 11/2" |
| 3 | 26-110-W021K3 |
| 2 | Handle Pin, Pentair American Products 2" H and M Valve |
| 1 | 26-110-W021K1 |
🔧 Exploded diagram and parts
This part belongs to the Pent Am Prod 2" H & M Series Multiport Valves assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 1 | ![]() |
Handle, Pentair American Products PacFab Multiport Valves | 271156 | Available to order | $20.86 | |
| 13 | ![]() |
Gasket, Pentair Multiport Valves, Sight Glass, 5/8"ID, 1"OD | 271106 | 64 in stock | $4.43 | Add to cart |
Plugs
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 4 | ![]() |
Screw, Pent Am Prod 2" H & M/Top Mount Screw-On Valves | 51017800 | 3 in stock | $3.33 | Add to cart |
| 11 | ![]() |
Gasket, Pent Am Prod H & M Valve, 7-1/8"OD, 5 Spokes, Generic | G-406 | 13 in stock | $8.51 | Add to cart |
| 12 | ![]() |
Nut, Pent Am Prod 2" H & M/Top Mount Screw-On Valves | 51017600 | 1 in stock | $1.81 | Add to cart |
| 14 | ![]() |
Sight Glass, Pent Am Prod 2" H & M/Top Mount Screw-On Valves | 51017400 | Available to order | $10.56 | |
![]() |
Plug, Lasco, 2" Male Pipe Thread | 450-020 | 74 in stock | $2.53 | Add to cart | |
![]() |
Plug, Lasco, 2" Spigot | 449-020 | 53 in stock | $4.87 | Add to cart |
Gaskets
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 3 | ![]() |
Washer, Pentair American Products PacFab Multiport Valves | 271157 | Available to order | $10.11 | |
| 7 | ![]() |
Spring Washer, Pent Am Prod PacFab Multiport Valves | 271160 | Available to order | $13.79 | |
| 11 | ![]() |
Gasket, Pentair H & M Valve, 6-3/8"OD, 5 Spokes | 51018600 | Available to order | $6.85 |




















