Square Ring, Pentair D Series, Diffuser | C21-2
$8.79
| Manufacturer part number | C21-2 |
| UPC (GTIN) | 022315372351 |
| Returns | 30-day returns – see our returns policy |
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💧 Square Ring, Pentair D Series, Diffuser
Made by Pentair, manufacturer part number C21-2.
📏 Specifications
| Specification | Value |
|---|---|
| Brand | Pentair |
| Manufacturer part number | C21-2 |
| Part Type | Square Ring |
| Cross Section | 3/16″ |
| Inside Diameter | 2-13/16″id |
| Catalog description | Square Ring, Pentair D Series, Diffuser |
Exploded parts diagram: This part is shown as item #19 on the Pentair D Series Pump Rpl Parts exploded parts diagram.
🔧 Pentair D Series Pump Rpl Parts – exploded parts diagram
The numbered parts below make up this assembly. Parts we stock are linked – click any to view.
| No. | Part |
|---|---|
| – | Pump, Pentair D Series, 3.0hp, 230v, 3Ph, Med Head, Self Prm |
| – | Trap Body, Pentair C/CC/D Series, Cast Iron, Pkg 98 8" dia |
| – | _PKG51 |
| – | _PKG56 |
| 22 | _U30-60ZP |
| 21 | _U78-941ZPV |
| 20 | 34-102-W069K20 |
| 19 | Square Ring, Pentair D Series, Diffuser ◀ this part |
| 18 | 34-102-W069K18 |
| 17 | Bolt, Pentair Sta-Rite, 3/8-16 x 3/4" |
| 16 | _C43-46 |
| 15 | _C43-45SS |
| 14 | _C20-100 |
| 13 | 34-102-W069K13 |
| 12 | 34-102-W069K12 |
| 11 | _C20-101 |
| 10 | Shaft Seal, Pentair, C/CC/D Series, Buna |
| 8 | _U43-12ZP |
| 7 | 34-102-W069K7 |
| 6 | Seal Plate, Pentair D Series |
| 5 | _071681 |
| 3 | _U65-42A |
| 2A | Shaft Slv D Ser |
| 2 | 34-102-W069K2 |
| 1 | 34-102-W069K1 |
🔧 Exploded diagram and parts
This part belongs to the Pentair D Series Pump Rpl Parts assembly. Everything listed below is something we stock for it, and the numbers match the diagram.
| No. | Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|---|
| 2A |  |
Shaft Slv D Ser | C23-58 | 4 in stock | $114.38 | Add to cart |
| 6 |  |
Seal Plate, Pentair D Series | C2-66 | Available to order | $296.01 | |
| 10 |  |
Shaft Seal, Pentair, C/CC/D Series, Buna | U109-433SS | 4 in stock | $177.99 | Add to cart |
| 20 |  |
Volute, Pentair D Series, Med Head 3hp, High Head 5hp | C76-12 | 3 in stock | $1115.83 | Add to cart |
| 20 |  |
Volute, Pentair D Series, High Head 3 Horsepower | C76-12B | Available to order | $856.54 | |
| 20 |  |
Volute, Pentair D Series, Medium Head 5 Horsepower | C76-12C | Available to order | $930.84 |
Complete trap bodys
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
 |
Trap Body, Pentair C/CC/D Series, Cast Iron, Pkg 98 8" dia | C53-21 | Available to order | $722.94 |
Parts that go with this
| Part | Our part number | Availability | Price | ||
|---|---|---|---|---|---|
 |
Tool, Pool Tool, O-Ring Pick | 134 | 18 in stock | $11.23 | Add to cart |
 |
Silicone Based Lubricant 1oz 00150 | 00150 | 343 in stock | $5.26 | Add to cart |
| Part Type | Square Ring |
|---|---|
| Cross Section | 3/16" |
| Inside Diameter | 2-13/16"id |
| H Part# | 35-102-2102 |