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Description
Sterlco 4700 Series Boiler Feed Units-4754-KDF(Duplex)Model: Sterlco 4700 Series Boiler Feed Units 4754 KDF(Duplex) Boiler HP: 30 Discharge Pressure P. S. I.: 50 Pump Cap (GPM): 6 Motor HP: 1 1 2 Rec Cap (Gal): 36 Weight lbs: 520 Sterlco K series 2 NPSH Pumps are designed to pump hot condensate up to 212 F. These pumps are equipped with a stainless steel impeller and inducer to assure long operating life. Carbon ceramic pump seal (300F) with EPDM elastomers Applications: Series Boiler Units, commercial
Model: Sterlco 4700 Series Boiler Feed Units-4754-KDF(Duplex)
Boiler HP: 30
Discharge Pressure P.S.I.: 50
Pump Cap (GPM): 6
Motor HP: 1 1/2
Rec Cap (Gal): 36
Weight lbs: 520
- Sterlco® K-series 2′ NPSH Pumps are designed to pump hot condensate up to 212° F. These pumps are equipped with a stainless steel impeller and inducer to assure long operating life.
- Carbon ceramic pump seal (300°F) with EPDM elastomers
Applications: Series Boiler Units, commercial HVAC, boiler rooms
Manufacturer Reference | Specs Sheet
Voltage Selection Guide:
- 1/60/115-208-230 - Single-phase motor for light commercial applications. Compatible with standard building electrical service.
- 3/60/208-230-460 - Three-phase motor for larger systems or industrial settings. Requires three-phase power supply.
Not sure what to choose? Contact our support team for guidance on voltage selection based on your facility.
NOTE: We will contact you during order fulfilment to discuss shipping and handling costs for products weighing more than 100 pounds. These costs will be billed separately.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
Worth the money
Size: Medium (Pack of 2), Color: Assorted
I've had several sizes of Chuck-It ball launchers for years but had resisted buying the balls to go with them because I had about 50 tennis balls already that cost only pennies apiece and these were quite a bit more expensive. But, I got tired of the dogs chewing up the tennis balls. I'd start a ball throwing session with a brand new ball and for the first few throws it would sail through the air and the dogs would have to work to retrieve it. However on the way back, their jaws would work it, chomp-chomp-chomp. And when they returned to me, they'd want to stand there and chomp some more, despite my command to "Drop it!" Within 30 minutes, the brand new ball would have a hole in it and then instead of sailing several football fields through the air, then bouncing over a couple of trees, I'd throw it and it would piddle unenthusiastically to the end of the driveway before falling to the ground with a sulky thud, not even bothering to bounce.
So - I finally grew tired of going through a ball every time I play with the dogs - which is everyday - and ordered these chuck-it balls. They are the same size as a tennis ball but made of a rubber-like material (not silicone) and after several months of use, have no wear and tear on them at all. The dogs can exercise their gums on them all the way back to me - throw after throw - and the ball still flies the same distance each time, and bounces satisfyingly upon contact with the ground.
The description says "colors may vary" but the first packet I ordered were blue and orange as pictured. Unfortunately my dog lost the orange one the first time we used it. She got thirsty and ran down to our pond for a drink, dropped the ball in the pond and it hasn't been seen since. It is dense enough it doesn't float as a tennis ball might, and by now is probably so covered in mud and slime that I wouldn't recognize it if I tripped over it. Lesson learned: we don't throw the ball in the pond pasture any more.
After losing the orange ball, I ordered a second packet of the balls so that I would always have a spare. The second packet is also blue and orange. So while colors may vary, in my experience so far, they haven't (which doesn't matter to me or the dogs).
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Reviewed in the United States on March 1, 2015
★★★★★ 5
Super Chewer Friendly!!
Size: Large (Pack of 1), Color: Multi
This ball is perfect for the super Chewer!! It is squishy and durable rubber that stands up to the aggressive chewer. It does not squeak. It has great bounce and is a great toy for fetch. Very cute to watching my pup bring the ball back for another throw. The rubber doesn't stick or have an average powering smell. It smells just like a rubber ball. It is highly functional for a great game of fetch! Highly recommend and very happy with our purchase. It is well worth the price. We will be ordering more.
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Reviewed in the United States on May 20, 2025
★★★★★ 5
Our dog is addicted
Size: Medium (1 Pack)
I’ve bought so many of these, our 65lb golden loves them. She also loves to leave them outside in bushes never to be found again. She also seems to love just carrying them around like they are her therapy toy,
They stand up to a LOT of chewing while playing fetch, and sometimes on the way back in the house. I’ve never seen a puncture but wouldn’t suggest leaving them unattended or using them as chew toys.
They bounce great on packed dirt and have a faint whistle if thrown hard enough.
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Reviewed in the United States on May 23, 2025
★★★★★ 5
My dog loves it!
Size: Medium (1 Pack)
One of her favorite balls!
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Reviewed in the United States on May 19, 2026
★★★★★ 5
best
Size: Medium (1 Pack)
best dog ball ever. stronger than the orange one of the same brand
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Reviewed in the United States on April 21, 2026