Shop Filler Breather Mounting Flanges
Hydraulic filler breather mounting flanges are components used to securely attach filler breathers, typically to hydraulic reservoirs. Think of them as sturdy brackets or plates that provide a stable mounting surface for the breather. They're designed to be attached to the hydraulic reservoir or other parts of the system, ensuring that the breather remains firmly in place. These mounting flanges help prevent the breather from moving or coming loose during operation, which could otherwise cause leaks or compromise the effectiveness of the breather. Overall, they play a crucial role in maintaining the integrity and functionality of the hydraulic system by keeping the breather securely positioned.
Filler breather mounting flanges give a hydraulic reservoir a sturdy, stable base for its filler breather, so the breather stays tight and doesn't work loose in service. They come in 0.5", 1.5" and 6" flange heights. A taller flange raises the breather higher above the reservoir top. Compare heights and materials in the table below, or see the spin-on filler breather adapters to upgrade a reservoir's standard breather mount (NPT, flange or bayonet) to a higher-capacity spin-on breather.
- Style:
- Filler Breather Mounting Flanges
- Flange Heights:
- 0.5", 1.5", 6"
- View the Catalog:
- Click HERE to view the Magnaloy Accessories Catalog
- View the Collection:
- Click HERE to view the Filler Breather Mounting Flange Collection

Mounting Flange FB-F-008

Mounting Flange FB-F-108

Mounting Flange FB-F-600
Click on the model number in the chart below to view that item. Options shown below are the most common and readily available.
Don't see what you need? Ask our technical team for a unit fit for your application!
| Product SKU ▼ | Flange Height ▼ | Material ▼ | Lead Time ▼ | Price ▼ |
|---|---|---|---|---|
| FB-F-008 | 0.5" | Blue Zinc Plated | 3-5 Days | $11.99 |
| FB-F-108 | 1.5" | Blue Zinc Plated | 3-5 Days | $19.99 |
| FB-F-600 | 6" | Blue Zinc Plated | 3-5 Days | $91.99 |
Technical Specs
Frequently Asked Questions
What is a filler breather mounting flange?
It's a plate or bracket that attaches to a hydraulic reservoir, or another part of the system, to give the filler breather a stable mounting surface. The breather installs on the flange, and the flange holds it firmly in place.
Why use a mounting flange instead of mounting the breather directly?
A mounting flange keeps the breather from moving or coming loose during operation. A loose breather can leak or stop working properly, and the flange helps prevent that by holding it securely in position.
What flange heights are available?
Mounting flanges come in 0.5", 1.5" and 6" heights. A taller flange raises the breather higher above the reservoir top. Choose the height that fits your tank layout, and use the product table to compare height and material.
What does a filler breather do on a hydraulic reservoir?
A filler breather serves as both the reservoir's fill point and its air vent. As the fluid level rises and falls, air moves in and out through the breather, which filters incoming air to keep contamination out of the tank. Where moisture is a concern, a desiccant breather can also remove water vapor from incoming air.
What other accessories go on a hydraulic reservoir?
Along with filler breathers and mounting flanges, common reservoir accessories include desiccant breathers, sight level gauges, reservoir lids, suction adapters and suction strainers, end cover kits, spin-on filler breather adapters and weld couplings for adding ports. For help matching a breather and flange to your reservoir, call 281-941-2310.


















