Filtrec · Filtrec elements · inline line

WG322 filter element: specifications & equivalents

Q: What are the dimensions of the WG322 filter element?

The published envelope is 99 mm OD × 470 mm length with a 57.5 mm inside diameter (3.898 × 18.504 in × 2.264 in ID). Confirm against the housing drawing before ordering.

Q: What micron rating does WG322 use?

This element is rated 12 µm absolute — β12(c)≥1000. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

The WG322 is a Filtrec inline-line hydraulic filter element, built with glassfiber media, sized 99 × 470 mm OD × length (ID 57.5 mm), rated at 12 µm absolute (β12(c)≥1000). Verify against the current manufacturer data sheet before ordering.

Envelope OD × L 99 × 470 mm

Inside diameter 57.5 mm

Filtration rating 12 µm abs.

Beta rating β 12(c)≥1000

Media glassfiber

Line type inline

Catalog verified. Parameters extracted from the manufacturer’s electronic catalog / official interchange document and checked 2026-10-03. Confidence score 0.90.

Dimensions and media grade are taken from Filtrec’s official Cross Navigator, which maps this element to specific competitor part numbers. Filtrec does not publish collapse pressure or seal compound in this API for every code — verify collapse rating, seal execution and bypass setting against the current Filtrec data sheet for the target housing before ordering.

Specification table

Parameter	Value
Filter type	inline line
Media	glassfiber
Filtration rating	12 µm
Rating basis	absolute
Beta ratio	β12(c)≥1000
Outside diameter OD	99 mm
Inside diameter ID	57.5 mm
Length	470 mm
Integral bypass valve	none (housing/valve-dependent)
Manufacturer part no.	WG322
Source catalog	Filtrec S.p.A.: Filtrec Cross Navigator
Last verified	2026-10-03

Sources: Filtrec S.p.A. — Filtrec Cross Navigator — accessed 2026-10-03.

Filtrec® and all model designations are trademarks of their respective owners, used here for identification only — ElementRef is an independent reference site, not an authorized Filtrec distributor.

Dimensional drawing

Reference drawing generated from the source values cited on this page — nominal envelope, schematic section, not a manufacturer drawing. The PDF is A3 landscape and vector; the PNG is sized for a WhatsApp preview. Confirm thread, end caps, seal compound and micron/Beta grade against the original element before ordering.

Dimensions & series range

Outside diameter	99 mm (3.898 in)
Inside diameter	57.5 mm (2.264 in)
Overall length	470 mm (18.504 in)

All 99×470 mm interchange elements →

Cross references & equivalents

Equivalent model	Brand	Match level	Note
↔ 50818R10BN page in verification queue	Aftermarket	full	Filtrec's official Cross Navigator maps HYDAC 50818R10BN to FILTREC WG322 as a direct replacement, publishing the FILTREC element's OD/ID/height envelope and media grade.
↔ HP18L1812MB page in verification queue	Aftermarket	full	Filtrec's official Cross Navigator maps HY-PRO HP18L1812MB to FILTREC WG322 as a direct replacement, publishing the FILTREC element's OD/ID/height envelope and media grade.
↔ 18LZ10	Schroeder Industries	partial	Schroeder online cross-reference (FILTREC); envelope match — verify grade and seals.

Interchange levels: full catalog-confirmed drop-in · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

Full chart: Filtrec cross reference chart →

How the WG322 model number is decoded

G10Filtrec internal media grade code (glassfiber, 12 µm).

Typical equipment & applications

Filtrec aftermarket replacement hydraulic/lube filter element (WG family), form-fit-function cross-referenced in Filtrec's official Cross Navigator.

Selection pitfalls — read before you substitute

“10 µm nominal” and “12 µm at β1000” can describe the very same media — one is reported at β≥200, the other at β≥1000 per ISO 16889. Compare ratings at the same Beta test point, not just the printed micron number.

Frequently asked questions

What are the dimensions of the WG322 filter element?

The published envelope is 99 mm OD × 470 mm length with a 57.5 mm inside diameter (3.898 × 18.504 in × 2.264 in ID). Confirm against the housing drawing before ordering.

What micron rating does WG322 use?

This element is rated 12 µm absolute — β12(c)≥1000. Always compare Beta ratings at the same test point: two brands may print different micron numbers for the same physical grade.

What replaces the WG322 filter element?

2 catalog-confirmed full match(es) (50818R10BN, HP18L1812MB); 1 partial match(es) requiring parameter review

Is a same-envelope aftermarket element always a drop-in replacement?

No. Matching OD and length only proves the cartridge fits the bowl. End-cap style, seal compound, micron/Beta rating, collapse pressure and bypass configuration must also match; the table above tags every equivalent as full, partial or verify for exactly this reason.

Same-envelope elements from other brands

View full interchange →

These 109 catalog element(s) share the 99×470 mm envelope. Envelope match alone does not guarantee interchangeability — compare micron/Beta, seals and collapse rating.

D651C03A Filtrec · 3 µm D651C10A Filtrec · 10 µm D651C10AV Filtrec · 10 µm D651C25A Filtrec · 25 µm D651C25AV Filtrec · 25 µm D651G01A Filtrec · 4 µm D651G01AV Filtrec · 4 µm D651G03A Filtrec · 5 µm D651G03AV Filtrec · 5 µm D651G03AV/ESD Filtrec · 5 µm

Other models in the Filtrec elements series

All 9874 (list page 18/20) →

A105C05 96×60 mm · 5 µm A105C10 96×60 mm · 10 µm A105C25 96×60 mm · 25 µm A105G03 96×60 mm · 5 µm A105G06 96×60 mm · 7 µm A105G10 96×60 mm · 12 µm A105G25 96×60 mm · 22 µm A105T125 96×60 mm · 125 µm A105T250 96×60 mm · 250 µm A105T60 96×60 mm · 60 µm

Reviewed & verified by the ElementRef engineering desk against Filtrec S.p.A. on 2026-10-03. Read our editorial & correction policy.