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🔥 Keep your heating system flawless with Taco’s pro-grade HY Air Vent!
The Taco 400-4 HY Air Vent is a brass, float-style automatic air vent designed for hydronic heating systems. It supports up to 150 psi and 240°F, featuring a threaded 1/8" NPT connection for easy installation on radiators, baseboards, and convectors. Its durable construction and serviceable design ensure reliable air removal, preventing noise, corrosion, and leaks for efficient, quiet heating.
| ASIN | B003QSJLL2 |
| Brand | Taco |
| Brand Name | Taco |
| Customer Reviews | 4.7 out of 5 stars 932 Reviews |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Global Trade Identification Number | 00687752581096 |
| Included Components | TACO 1/8" HY-VENT AIR VENT |
| Inlet Connection Size | 0.13 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection size | 0.13 Inches |
| Inlet connection type | National Pipe Tapered |
| Item Dimensions | 5.1 x 5.1 x 8.3 centimeters |
| Item Type Name | TACO 1/8" HY-VENT AIR VENT |
| Item Weight | 48 Grams |
| Item dimensions L x W x H | 5.1 x 5.1 x 8.3 centimeters |
| Manufacturer | Taco |
| Manufacturer Part Number | taco - 400-4 |
| Material | Brass |
| Material Type | Brass |
| Maximum Pressure | 150 Pound per Square Inch |
| Model Number | taco - 400-4 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 0.13 Inches |
| Outlet Connection Type | NPT |
| Size | 1 |
| UPC | 074748353735 687752581096 |
| Unit Count | 1 Count |
| Valve Type | Vent |
A**L
Automatic air vent
Actually vents on it's own. No problems and definitely would buy again.
P**F
Reliable Solution for Hydronic Heating Systems
Maintaining a hot water heating system requires effective air removal to prevent noise and corrosion. This Taco 400-4 Float Air Hy-Vent provides a high-quality replacement for older, failing vents that often begin to weep or crust over with mineral deposits. Its compact 1/8-inch NPT connection makes it a versatile choice for radiators, baseboard heaters, and high points in a plumbing loop. +1 Performance and Reliability Effective Air Elimination: The internal float mechanism responds quickly to air pockets, venting them automatically while keeping the system water-tight. This helps to eliminate the "gurgling" sounds often heard in residential heating lines. Direct Replacement for Leaks: These units were used to replace several original vents that had started leaking at the caps. The swap was seamless, and the new valves immediately stopped the slow drips that were causing pressure loss in the boiler system. Durable Construction: The brass body is robust and built to withstand the high temperatures and pressures of a standard hydronic system. It feels significantly more substantial than cheaper, unbranded alternatives. Serviceable Design: The threaded cap allows for easy inspection. If debris from an older system ever gets trapped in the seat, the vent can often be cleaned rather than completely replaced. Upgrading to these Taco vents is a practical maintenance step for any homeowner dealing with aging heating components. They provide a secure seal and consistent venting performance. For anyone looking to resolve persistent leaks and improve the efficiency of their radiators, this is a dependable and professional-grade solution.
R**.
very good
very good
J**P
Nice replacement Hy-Vent to replace existing unit. Good quality.
Bought to replace a corroded Hy Vent on my homes furnace. . Exact fit and worked great to repair the problem. Well made. Great fit.
C**W
Working fine
Seems fine to me. Replaced the old valve, also Taco (possibly the identical item), and threaded it on. Has been working great ever since.
Trustpilot
2 months ago
2 weeks ago