Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

BetterBilt 38.375-in Silver Aluminum Window Joining Kit with Mull Kit

Get Pricing & Availability

  • Aluminum Mull bar to join windows together

  • Available in white, bronze, driftwood or mill finish

  • Flange application

Best Price. Guaranteed
Find a lower price on an exact item? We'll match it. Some exclusions apply.
Price Guarantee
FREE Returns
Return it in store or ship it back for free. Eligibility rules apply.
Return Policy
FREE Shipping
Delivery is on us for orders over $45. Some exclusions apply.
Shipping Details