Endura Z-Articulating Cap Sill™ and Sealing System

The revolutionary Endura Z-Articulating Cap Sill™ and Sealing System features a comprehensive door sill that combines ingenuity and durability to seal your entry way door. The system offers a sill cap that never needs adjusting, integrates end-sealing abilities to account for real-world problems and a caulk-free application, providing you with an unmatched experience with your door.

The Z-Articulating Cap Sill™ and Sealing System stops leaks and air infiltration by auto-adjusting within the door unit, ultimately saving you time and money. Imperfect margins and surfaces that are not level don’t stand a chance!

Endura Z-Articulating Cap Sill™ and Sealing System is the ultimate component and features protection and performance like no other.

*While we know it’s fun to door-it-yourself, we recommend hiring a professional to replace your sill system. This product is recommended for uninstalled doors and professional use only. 

This product does not qualify for expedited shipping.

Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

Starting at: $47.50

Product Options


Return Policy: 60 Days

Starting at: $47.50

Product Overview


• This product qualifies for $4.99 Standard Shipping to the contiguous 48 states

• Innovative smart sealing technology delivers a sill system that automatically adjusts, seals with imperfect conditions, and delivers lasting sealing power for a maintenance-free sill system that never stops working for you
• Never needs adjustment – spring-loaded sill cap automatically adjusts at install and over time, unlike more traditional sill solutions which require regular, manual adjustment for proper performance
• Unmatched sealing power – auto-adjusting cap and built-in sealing system have been tested and proven to deliver constant protection against air and water infiltration, protecting your home long after other sill solutions fail
• Unmatched performance – tested and proven to outperform all others, even with imperfect, changing conditions and imperfect installations
• Forgiving Design – designed for the real world, working even in imperfect and changing conditions, and with imperfect installations
• Saves time and money by eliminating common sill maintenance needs and issues – just install and move on, enjoying your door system by never having to worry about it.
• Available in a variety of length and finish options for a tailored install
• This sill will only function properly in conjunction with a Z-Articulating Cap Sill™ Door Bottom

• Endura Part Number: ZACL___F__

Reviews (1)

1 review for Endura Z-Articulating Cap Sill™ and Sealing System

  1. Rated 5 out of 5

    Rick S Trujillo

    Looks like I am the first review. I have to preface my review with a short synopsis of why I purchased this Cap Sill. My Wife has been complaining about a draft in the house for 18 years. I did not feel it, She is always cold, I am always hot. So, I purchased the Z-articulating Cap Sill and the QEBD825 weather strip. The Door is outstanding, but I forgot to get the sweep, don’t forget to purchase it at the same time so you can get the free shipping with a larger purchase, I forgot and it cost me (big time). The bottom line is, the product is superior to anything you can get from the big box stores, and less expensive (as long as you don’t forget all of the pieces). I am doing all of the doors in my house, I am very impressed with the Customer Service, shipping is fast, and the product is top of the line. I would go on, but I have to work tomorrow. Good Luck, you will not be sorry with your purchase. I intend to add a Green section to my Solar blog, and will include and expand in detail how we installed the Cap Sill as painless as possible.

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