Envelope interchange · 3.11×8.19 in
79×208 mm filter elements
33 elements from 3 brand(s) share this envelope: 79 mm outside diameter and 208 mm overall length (3.11×8.19 in).
Dimensional interchange — verify before substituting. These cartridges fit the
same bowl space; they are not guaranteed drop-in equivalents. Compare grade,
end caps, seals, collapse rating and bypass configuration for the specific duty.
| Model | Brand | ID (mm) | Micron | β rating | Collapse (bar) | Bypass | Seal | Type |
|---|---|---|---|---|---|---|---|---|
| 51683 | WIX Filters | 42.1 | 9 | β20 = 8, β75 = 10 | 20.684 | housing | Nitrile (NBR) | return |
| 51686 | WIX Filters | 42 | 5 | — | — | housing | Nitrile (NBR) | return |
| 57183 | WIX Filters | — | 3 | — | — | housing | Nitrile (NBR) | return |
| HF7068 | Fleetguard | 42.42 | 5.1 | 5.1 µm at β75(c); 6.5 µm at β200(c) per ISO 16889 | 10.34 | housing | — | inline |
| HF7069 | Fleetguard | — | — | — | — | housing | — | inline |
| HF7070 | Fleetguard | 42.42 | 11.5 | 11.5 µm at β75(c); 12.9 µm at β200(c) per ISO 16889 | 10.34 | housing | — | inline |
| HF7071 | Fleetguard | 42.42 | 20.9 | 20.9 µm at β75(c); 24.6 µm at β200(c) per ISO 16889 | 10.34 | housing | — | inline |
| HF7468 | Fleetguard | — | — | — | — | housing | — | inline |
| HF7470 | Fleetguard | — | — | — | — | housing | — | inline |
| HF7471 | Fleetguard | — | — | — | — | housing | — | inline |
| 8T10 | Schroeder Industries | 43 | 10 | 18 µm at β(c) ≥ 200 (99.5% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8T10V | Schroeder Industries | 43 | 10 | 18 µm at β(c) ≥ 200 (99.5% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8T25 | Schroeder Industries | 43 | 25 | β(c) ≥ 1000 (99.5% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8T25V | Schroeder Industries | 43 | 25 | β(c) ≥ 1000 (99.5% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8T3 | Schroeder Industries | 43 | 3 | 10 µm at β(c) ≥ 200 (99.5% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8T3V | Schroeder Industries | 43 | 3 | 10 µm at β(c) ≥ 200 (99.5% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TW | Schroeder Industries | 43 | — | β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TWV | Schroeder Industries | 43 | — | β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TZ1 | Schroeder Industries | 43 | 1 | 4.2 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TZ10 | Schroeder Industries | 43 | 10 | 10 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TZ10V | Schroeder Industries | 43 | 10 | 10 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TZ1H | Schroeder Industries | 43 | 1 | 4.2 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Ethylene Propylene Rubber (EPR) | inline |
| 8TZ1V | Schroeder Industries | 43 | 1 | 4.2 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TZ25 | Schroeder Industries | 43 | 25 | 24 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TZ25V | Schroeder Industries | 43 | 25 | 24 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TZ3 | Schroeder Industries | 43 | 3 | 4.8 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TZ3H | Schroeder Industries | 43 | 3 | 4.8 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Ethylene Propylene Rubber (EPR) | inline |
| 8TZ3H.5 | Schroeder Industries | 43 | 3 | 4.8 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Ethylene Propylene Rubber (EPR) | inline |
| 8TZ3V | Schroeder Industries | 43 | 3 | 4.8 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
| 8TZ5 | Schroeder Industries | 43 | 5 | 6.3 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Nitrile (Buna-N) | inline |
| 8TZ5H | Schroeder Industries | 43 | 5 | 6.3 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Ethylene Propylene Rubber (EPR) | inline |
| 8TZ5H.5 | Schroeder Industries | 43 | 5 | 6.3 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Ethylene Propylene Rubber (EPR) | inline |
| 8TZ5V | Schroeder Industries | 43 | 5 | 6.3 µm at β(c) ≥ 1000 (99.9% efficiency) | 10.3 | housing | Fluorocarbon (Viton) | inline |
Substitution verification checklist
- Filtration grade. Compare at the same ISO 16889 Beta test point — “10 µm nominal” and “12 µm β1000” may be the same physical media.
- End caps & O-rings. Open/closed cap style and seal position block interchange even with identical OD/length.
- Seal compound. NBR is standard for mineral oil; phosphate-esters, high temperatures or bio-oils can demand fluorocarbon.
- Collapse rating. Low-collapse (~20 bar) return elements must never replace high-collapse (210 bar) pressure elements.
- Bypass strategy. Integral bypass valves (e.g. 3.4 bar) vs reusable housing valves change cold-start behaviour.
Frequently asked questions
Are all 79×208 mm filter elements interchangeable?
They share the same physical envelope — 79 mm OD and 208 mm length (3.11×8.19 in) — so they fit the same bowl. Interchangeability ends there: micron/Beta rating, end-cap geometry, seals, collapse rating and bypass configuration differ across the 33 elements listed and must be checked against the duty.
Is it a drop-in replacement if the OD and length match?
Only after verification. Confirm in order: (1) the filtration grade meets the ISO 4406 cleanliness target at the same Beta test point, (2) end-cap and O-ring arrangement is identical, (3) seal compound suits the fluid (NBR vs fluorocarbon), (4) collapse/burst rating fits pressure-line or cold-start conditions, and (5) the bypass strategy (integral valve vs housing valve) matches.
What is 79×208 mm in inches?
79×208 mm converts to approximately 3.11×8.19 in.
Browse all 79 mm OD elements or open the dimensions finder.
Request quote & availability
First reply within 2 business hours · first quotation — including the original brand and 1–2 verified equivalents — within 24 hours on business days.