Apollo Cast Bronze Safety Relief Valve, MNPT Inlet Type, FNPT Outlet Type - 13101B15

Apollo Cast Bronze Safety Relief Valve, MNPT Inlet Type, FNPT Outlet Type - 13101B15

Marsoni

M251S

$53.96

Get it in 3 business days with 1 day shipping. Friday, May 29

Apollo Cast Bronze Safety Relief Valve, MNPT Inlet Type, FNPT Outlet Type - 13101B15Safety Relief Valve; Body Material: Cast Bronze; Inlet Type: MNPT; Outlet Type: FNPT; Inlet Size: 3 4 in; Outlet Size: 3 4 in; Factory Set Pressure: 15 psi; Pressure Range: 5 to 15 psi; BtuH: 410,000; Disc Material: EPDM; Overall Height: 2 7 8 in; Application: Low Pressure Steam Heating and Supply Boilers; Overall Length: 2 3 16 in; Seat Material: EPDM; Spring Material: Stainless Steel; Temp. Range: 0 Degrees to 250 Degrees F; Test Lever: Yes;

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I have a grandson (5yrs old) who loves "There was an old lady who swallowed a fly" books, and is obsessed with black holes as well. He asked santa for a black hole for Christmas and his mom told me, "good luck with that", so when I found this, it was perfect! He absolutely loved it and it's a cute book to read.

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Reviewed in the United States on February 5, 2025

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Amazon Customer

Omaha, US

★★★★★ 5

Love it!

Format: Paperback

My 6 year old LOVES this book! I read it to him every night that I know it by heart. He’s extremely fascinated by black holes, and It has really got him curious about cells and atoms.

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Reviewed in the United States on March 13, 2026

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Delayed Gratification

Lowell, US

★★★★★ 4

2nd book if you have black light

Format: Hardcover

The book is ok, with the same plot as "there was an old lady who swallowed a fly" but there is a second book that goes back to front if you have a blacklight. Some of the pages were not printed well with the invisible ink but I really liked that second book better, as it explains the terminology like quarks and atoms. It is a fun book but having a black light is a must.

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Reviewed in the United States on January 19, 2024

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Amanda Embry

Carnegie, US

★★★★★ 5

Fun book to read!

Format: Paperback

Such a fun book for my boys! They love it!

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Reviewed in the United States on November 14, 2025

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