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Midline Valve S1557-5 Boiler Air Scoop Valve for Hydronic Heating Applications; 1 in. FIP Connections; Cast Iron (5 Pack)
✅ In stock
F
Grade
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Oct 14, 2026 5:05 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
0/22
Market Standing
0/20
Deal Strength
0/20
Momentum
0/10
📝 Product Overview
🏪 Sold by
Amazon.com
🚚 Shipping
Free Shipping
Product Details
✓Replacement Valve: Great for Replacing Existing Boiler Air Separator; Compatible With All Major Brands
✓Saves Time and Money: Continuously Separates and Purges Air From Hydronic Heating Systems; Reduces Need for Manual Venting
✓Superior Quality: Heavy Duty OnePiece Cast Iron Construction; Lead Free; Corrosion Resistant; Rust Resistant
✓Universal Fit: This Valve Features Standard Connections to Fit Your Pipes, Vents and Expansion Tanks
✓Secure, Leak-Free Fip Connection
⚙️ Specifications
Midline Valve
S1557-5
3.5 pounds
2 x 1 x 1 inches
S1557-5
Black
1''
Iron
Manufacturer
Midline Valve
Part Number
S1557-5
Item Weight
3.5 pounds
Product Dimensions
2 x 1 x 1 inches
Item model number
S1557-5
Color
Black
Style
1''
