Water heating Maf orifices Description
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![Midland Metal Mfg. OH-72 CAP ORIFICE 72 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-72_medium.jpg?v=1720017214)
OH-72 | CAP ORIFICE 72 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-72
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![Midland Metal Mfg. OH-33 CAP ORIFICE 33 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-33_medium.jpg?v=1720017213)
OH-33 | CAP ORIFICE 33 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-33
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![Midland Metal Mfg. OH-35 CAP ORIFICE 35 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-35_medium.jpg?v=1720017221)
OH-35 | CAP ORIFICE 35 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-35
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![Midland Metal Mfg. OH-57 CAP ORIFICE 57 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-57_medium.jpg?v=1720017242)
OH-57 | CAP ORIFICE 57 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-57
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![Midland Metal Mfg. OH-68 CAP ORIFICE 68 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-68_medium.jpg?v=1720017241)
OH-68 | CAP ORIFICE 68 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-68
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![Midland Metal Mfg. OH-40 CAP ORIFICE 40 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-40_medium.jpg?v=1720017239)
OH-40 | CAP ORIFICE 40 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-40
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![Midland Metal Mfg. OH-49 CAP ORIFICE 49 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-49_medium.jpg?v=1720017238)
OH-49 | CAP ORIFICE 49 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-49
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![Midland Metal Mfg. OH-44 CAP ORIFICE 44 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-44_medium.jpg?v=1720017235)
OH-44 | CAP ORIFICE 44 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-44
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![Midland Metal Mfg. OH-32 CAP ORIFICE 32 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-32_medium.jpg?v=1720017234)
OH-32 | CAP ORIFICE 32 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-32
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![Midland Metal Mfg. OH-71 CAP ORIFICE 71 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-71_medium.jpg?v=1720017234)
OH-71 | CAP ORIFICE 71 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-71
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![Midland Metal Mfg. OH-53 CAP ORIFICE 53 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-53_medium.jpg?v=1720017232)
OH-53 | CAP ORIFICE 53 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-53
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![Midland Metal Mfg. OH-29 CAP ORIFICE 29 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-29_medium.jpg?v=1720017229)
OH-29 | CAP ORIFICE 29 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-29
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![Midland Metal Mfg. OH-62 CAP ORIFICE 62 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-62_medium.jpg?v=1720017228)
OH-62 | CAP ORIFICE 62 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-62
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![Midland Metal Mfg. OH-51 CAP ORIFICE 51 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-51_medium.jpg?v=1720017216)
OH-51 | CAP ORIFICE 51 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-51
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![Midland Metal Mfg. OH-55 CAP ORIFICE 55 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-55_medium.jpg?v=1720017215)
OH-55 | CAP ORIFICE 55 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-55
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![Midland Metal Mfg. OH-0 CAP ORIFICE BLANK MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-0_medium.jpg?v=1720017209)
OH-0 | CAP ORIFICE BLANK MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-0
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![Midland Metal Mfg. OH-38 CAP ORIFICE 38 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-38_medium.jpg?v=1720017212)
OH-38 | CAP ORIFICE 38 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-38
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![Midland Metal Mfg. OH-45 CAP ORIFICE 45 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-45_medium.jpg?v=1720017207)
OH-45 | CAP ORIFICE 45 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-45
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![Midland Metal Mfg. OH-34 CAP ORIFICE 34 DRILL SIZE MAF/USA Mid-America Fittings Made in USA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/OH-34_medium.jpg?v=1720017208)
OH-34 | CAP ORIFICE 34 DRILL SIZE MAF / USA Mid-America Fittings Made in USA | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: OH-34
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