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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
Standard Features * 2501 -Square or rectangular for vertical mount only
Fan shaped 1/2" spaced louvers
Standard Features Double deflection surface mount grille with adjustable airfoil blades Front blades parallel to longest dimension
CSFM California State Fire Marshal listed
Please contact us for a quote on optional Stainless Steel Construction or Fractional Sizes
Pressure Relief HD 3530-24X24 Commercial Standard Features * 2501 -Squareh3. Standard Features * 3510 Vertical mount * 3520 Horizontal mount air up * 3530 Horizontal mount air down * Designed to open with negative or positive pressures for intake or exhaust air * Felt edge blades to hold noise to a minimum * Aluminum construction * Blade to blade linkage * 1 4" pivot pins in nylon busings * Maximum size 24 x 24 * Mill finish h3. Options * Sleeve variations * Mounting flange * Adjustable counter balance to adjust various
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