A bronze hot water recirculating pump can help move hot water through a plumbing loop, reducing the wait at fixtures. The Taco 006-B4 is best for buyers seeking a bronze circulator with stated flow and temperature ranges. Talspity is a better fit for people who want three speed settings and multiple connection sizes. Alicatong and ZFQPTO are replacement-style options specified for 115V systems with 1/2-inch sweat connections, while Armstrong is a bronze flanged replacement pump with limited published details.
| Product | Best For | Key Detail |
|---|---|---|
| Taco 006-B4 | Bronze circulator comparison | 0–10 GPM; 0–9 feet of head |
| Talspity NBF-22 | Adjustable circulation | Three speeds; several flange sizes |
| Alicatong UP15-18B5 replacement | Specified 1/2-inch sweat replacement | 115V; 1/25 HP |
| ZFQPTO UP15-18B5 | Open-system replacement applications | 115V; 1/2-inch sweat end |
| Armstrong 182212-667 | Bronze flanged replacement needs | Single-phase pump |
Taco 006-B4 Bronze Circulator Pump

The Taco 006-B4 is a bronze circulator with a 3/4-inch sweat connection. Its listed flow range is 0–10 GPM, and its head range is 0–9 feet. The stated minimum fluid temperature is 40°F and maximum is 220°F.
Best for: Buyers comparing a bronze circulator by flow, head, and temperature specifications. These figures make it easier to check whether the pump’s stated operating range fits a planned system.
Limitation: The supplied product details do not specify a timer, line cord, or complete recirculation kit. Confirm the installation requirements and included components before choosing it.
Talspity NBF-22 Three-Speed Circulator

Talspity describes this NBF-22-compatible pump as having a bronze body and three selectable speeds. The listing gives a maximum flow of 22 GPM, maximum head of 6 meters, 115V power, and a maximum temperature of 110°C. Flanged connection options are listed from 1/2 inch through 1-1/4 inch.
Best for: Buyers who want speed choices for different circulation demands or need to compare multiple flange sizes. The low, medium, and high settings are described for differing flow needs.
Limitation: Check the exact flange size and system requirements before purchase. Its maximum temperature is stated in Celsius, so compare it with the temperature limits of the full plumbing system.
Alicatong UP15-18B5 Replacement Pump

Alicatong lists this 115V circulator as a replacement for part number UP15-18B5, 59896114. The product title identifies it as a bronze pump with a 1/2-inch sweat line connection. Its stated motor power is 1/25 horsepower, and the package includes one pump and accessories.
Best for: Buyers whose existing pump uses the listed replacement number and who need a 1/2-inch sweat connection. The listed voltage and horsepower provide additional points to verify against the existing equipment.
Limitation: The supplied features do not provide a flow or head range. Verify part number, connection, and electrical specifications rather than assuming that a similar-looking pump will suit the system.
ZFQPTO UP15-18B5 Sweat-End Pump

ZFQPTO identifies this as a bronze recirculating pump for open-system hot water use and lists compatibility with UP15-18B5, part number 59896114. Specifications include 115V, 1/25 horsepower, 0.74A, 85W, IP44 protection, and a 1/2-inch sweat end.
Best for: Buyers seeking a replacement-style pump with the listed part number and sweat-end connection. The product information also names potable water circulation and hydronic heating among its intended application types.
Limitation: The listed specifications do not state flow or head ranges. Confirm those requirements for the plumbing layout before selecting this pump.
Armstrong 182212-667 Bronze Flanged Pump

Armstrong’s 182212-667 is described as a single-phase circulating pump with a bronze FTD pump and flanges. The listing identifies it as a replacement part, making it most relevant when matching an existing pump or a specified replacement component.
Best for: Buyers who need a bronze flanged replacement and can verify the model against their current equipment or system documentation.
Limitation: The available product details do not provide voltage, flow, head, temperature, or connection dimensions. Confirm these specifications before purchase; the listing information alone is not enough to establish fit.
Buying Guide: How To Choose A Bronze Recirculating Pump
What connection does the system require?
Match the pump connection to the plumbing before comparing other features. The products here include 3/4-inch sweat, 1/2-inch sweat, and flanged configurations. A connection mismatch can make an otherwise suitable pump a poor replacement choice. For flanged models, verify the exact flange size and layout with the existing piping or system specifications.
How much flow and head should you compare?
Flow and head describe different operating characteristics. Flow is commonly expressed in gallons per minute, while head is a measure of the pump’s ability to move water against system resistance. The Taco listing provides ranges for both; Talspity and other listings provide different combinations of specifications. Compare the values with the requirements for the actual loop, not just the highest number.
Does the pump need to match an existing model?
For a replacement, compare the part number, voltage, horsepower, connection type, and physical configuration. Alicatong and ZFQPTO list UP15-18B5 and 59896114; Talspity and HUAYOUR identify NBF-22 or Bell & Gossett compatibility. Treat compatibility claims as a starting point and verify the complete match for your setup.
What should you check for hot-water use?
Compare the pump’s stated maximum temperature with the system’s operating conditions. Also verify whether the product is specified for the intended type of water circulation. Do not assume that bronze construction alone confirms suitability for every potable-water system or installation.
Frequently Asked Questions
What does a hot water recirculating pump do?
It moves hot water through a circulation loop, which can reduce the time users wait for hot water at fixtures connected to that system.
Why consider a bronze pump?
Bronze construction is a listed feature of several options here. Buyers should still confirm the pump’s application, connections, temperature limits, and system requirements.
Is a 1/2-inch sweat pump interchangeable with a 3/4-inch model?
Not automatically. The connection sizes differ, and installation fit depends on the existing piping and system design.
Which option lists multiple speed settings?
The Talspity NBF-22 listing specifies three speeds: low, medium, and high.
What should I verify before ordering a replacement?
Check the part number, voltage, connection size and type, flow and head requirements, temperature limits, and package contents against the existing pump or system documentation.