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Filler-Breather, 3.94 in. Plastic basket, without pressurisation

Description & Features

Designed for hydraulic reservoir maintenance, the Filler-Breather, 3.94 in. Plastic basket, without pressurisation is a Stauff-manufactured unit that combines fluid fill access with continuous air filtration. The chrome plated steel filler cap is rated at 16 SCFM and incorporates a 10-micron filtration element, helping to control airborne contamination entering the reservoir during fluid addition or thermal breathing cycles.

The 3.94 in. plastic basket provides structural support for the filter media while keeping the assembly lightweight. Configured without pressurisation, this unit is suited for vented reservoir applications where no positive tank pressure is required. The male connection type makes installation straightforward on standard reservoir fill ports.

SKU: SMBB80CS0100CP10

Supplier Part Number (MPN): 6100166528

Alternate Part Numbers: C1KH48, C1ML66, MI-08752089, MINO-02491X63334, SMBB-80C-S-0-10-0-C-P100-0, SMBB-80C-S-O-10-O-C-S100-O, SMBB80CS0100CP1000, STNA61653

Specifications

Brand Stauff-Special Quotes	Brand Stauff Corporation	Pack Size 1.00	UOM EA	Filler Cap 16 SCFM, Chrome Plated Steel, 10 Micron	Custom Options without pressurisation	Mfg. Name Stauff	Screen 3.94 in. Plastic basket	Supplier Part Number 6100166528	Alternate Part Numbers Alternate Part Number C1KH48, Alternate Part Number C1ML66, Alternate Part Number MI-08752089, Alternate Part Number MINO-02491X63334, Alternate Part Number SMBB-80C-S-0-10-0-C-P100-0, Alternate Part Number SMBB-80C-S-O-10-O-C-S100-O, Alternate Part Number SMBB80CS0100CP1000, Alternate Part Number STNA61653	Product Weight 0.99 lbs

Similar Products

Model Number	Filler Cap	Screen	Options	Price	Action
SMBB80CS0100CP10 Filler-Breather	16 SCFM, Chrome Plated Steel, 10 Micron	3.94 in. Plastic basket
6100081091 Filler-Breather	16 SCFM, Chrome Plated Steel, 40 Micron	3.74 in. Plastic basket

Product Questions & Answers (3)

Question by: Lynn M on Feb 3, 2026, 10:52 AM

What size is the mesh on this breather basket? I need to make sure it'll catch the stuff I'm worried about getting in my hydraulic tank.

Answer by: Customer Support on Feb 4, 2026, 1:25 PM

The plastic basket screen measures 3.94 inches.

Question by: Diane B on Apr 1, 2025, 1:06 PM

what's the micron rating on the filter element for this filler breather?

Answer by: Customer Support on Apr 3, 2025, 10:42 AM

The filter element on this unit is rated at 10 micron, and the filler cap is chrome plated steel. Airflow capacity runs at 16 SCFM, so it moves a decent volume while still keeping contaminants out of the reservoir during filling and normal tank breathing.

Question by: Earl B on May 13, 2025, 3:41 PM

i keep seeing “filler-breather” on these, what’s it actually do on a hydraulic tank?

Answer by: Customer Support on May 15, 2025, 6:09 AM

On a hydraulic reservoir, a filler-breather combines the fill point with a breather element so the tank can exchange air as fluid level changes while filtering that incoming air. This one is a STAUFF unit with a 10 micron breather and a chrome plated steel cap.