Prevost ALTO 4 Air Line Lubricator — 3/4" & 1" FNPT
The Prevost ALTO 4 air line lubricator meters oil into the air stream to keep air motors, impact wrenches, grinders and cylinders running longer between rebuilds. ALTO 4 is the large-body size in the Prevost ALTO range, covering 3/4" and 1" FNPT ports at flows well past what the smaller ATU bodies handle.
An adjustable needle valve sets the drip rate, and a sight dome on top lets you confirm the feed at a glance without shutting the line down. The modular ALTO 4 body stacks with the matching ALTO 4 filter and regulator to build a full 3/4" or 1" FRL train.
Specifications
- Port sizes: 3/4" FNPT and 1" FNPT
- Flow rate: 254 CFM (3/4") / 318 CFM (1") at 87 psi, ΔP = 7 psi
- Oil capacity: Approximately 8 oz
- Recommended oil: ISO VG32 air tool oil (Prevost LUB 3256)
- Feed: Adjustable needle valve with sight dome
- Body: Aluminum alloy with metal bowl guard
- Series: Prevost ALTO 4 air treatment module
Available Variants & SKUs
| SKU | Port Size | Flow Rate |
|---|---|---|
| TL 204 | 3/4" FNPT | 254 CFM at 87 psi (ΔP = 7 psi) |
| TL 205 | 1" FNPT | 318 CFM at 87 psi (ΔP = 7 psi) |
Flow ratings are taken from the Prevost 2026 US price list. Install the lubricator last in the train, downstream of the filter and regulator, and never upstream of a dryer or a paint circuit.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
We offer Financing Through Many Different Avenues:
- Affirm is great for smaller purchases. You can do this during checkout.
- Clicklease is a great option for Instant decisions up to 25k. NO Hard credit pull. No Time in Business Required. More information can be found out about it here: https://www.clicklease.com/partner/warthog-air-compressor-store
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