Eco Friendly Glass Containers - Glasslock

How to Choose the Right Lid for Your Glasslock Container

How to Choose the Right Lid for Your Glasslock Container

By Eco Friendly Glass Containers - Glasslock | Published: 2026-07-29

Category: Buying Guides

Learn how to match the right lid to your Glasslock container. This guide covers lid sizes, shapes, compatibility, and replacement tips for round, square, and rectangle lids.

Choosing the right lid for your Glasslock container is essential to maintain an airtight seal, prevent leaks, and keep your food fresh. With multiple shapes and sizes available, it can be confusing to know which lid fits which container. This guide will help you navigate Glasslock lid sizes, shapes, and compatibility, so you can confidently select or replace lids for your storage needs.

Whether you have round, square, or rectangle containers, Glasslock offers dedicated lids designed for a perfect fit. Using the wrong lid can lead to spills or broken seals, so understanding the differences is key. We'll cover the common lid types, how to identify the correct size, and where to find replacements if you've lost or damaged a lid.

Understanding Glasslock Lid Shapes and Sizes

Glasslock lids are designed specifically for each container shape: round, square, and rectangle. Round lids typically fit round containers like the OCCT-085 and OCCT-045. Square lids are used for square containers such as the OCST-090 and OCST-165. Rectangle lids are made for rectangle containers, including the Handy Rectangle series like the MHRB-250, MHRB-270, and MHRB-450. Each shape has its own locking mechanism and seal to ensure freshness.

Sizes vary within each shape. For example, rectangle lids come in different lengths to match the 10.5-cup, 11.5-cup, and 19.0-cup containers. Square lids are available for 3.3-cup and 6.0-cup sizes. Round lids fit 1.6-cup and 3.1-cup containers. Always check the container's base or volume to find the corresponding lid size. Glasslock lids are not interchangeable across different shapes, so using a round lid on a square container will not seal properly.

  • Measure the container's opening or check the model number (e.g., OCST-090) to find the correct lid.
  • Glasslock lids are BPA-free and made from durable plastic with silicone seals for an airtight fit.
  • For rectangle lids, note that the Handy Rectangle series uses a specific lid design with locking tabs.

Glasslock Lid Compatibility: What Fits What?

Glasslock lids are designed to be shape-specific and size-specific. For round containers, the OCCT-045 lid fits the 1.6-cup round, and the OCCT-085 lid fits the 3.1-cup round. Square lids are available for the OCST-090 (3.3 cups) and OCST-165 (6.0 cups). Rectangle lids are sold separately for the Handy Rectangle line: the MHRB-250 (10.5 cups), MHRB-270 (11.5 cups), and MHRB-450 (19.0 cups) each require their own lid. Using a lid from a different size, even within the same shape, may result in a poor seal.

If you own a set like the Glasslock Oven Safe Rectangle 6pc set or the 18pc Oven Safe Box Set, the lids are included and matched to the containers. However, if you lose a lid, you can purchase replacement lids individually. Glasslock offers Square Lids as a standalone accessory for square containers. For rectangle containers, you'll need to order the specific lid that matches your container's volume. Always refer to the product code or measure the container to ensure compatibility.

  • Round lids: OCCT-045 (1.6 cups), OCCT-085 (3.1 cups)
  • Square lids: OCST-090 (3.3 cups), OCST-165 (6.0 cups)
  • Rectangle lids: MHRB-250 (10.5 cups), MHRB-270 (11.5 cups), MHRB-450 (19.0 cups)

How to Identify Your Glasslock Lid Size

The easiest way to identify the correct lid size is to look at the bottom of your Glasslock container. Most containers have a model number stamped into the glass, such as OCST-090 or MHRB-270. This code directly corresponds to the lid that fits it. If the number is worn or missing, measure the length and width of the container's opening. For rectangle containers, measure the longer side; for square, measure one side; for round, measure the diameter. Compare your measurements to the official Glasslock lid dimensions.

Another method is to check the original packaging or product listing. If you purchased a set, the lid sizes are listed in the product description. For example, the 18pc set includes multiple sizes, and each lid is labeled. If you still have trouble, Glasslock customer support can help. Remember, using the correct lid ensures your food stays fresh and prevents leaks in your lunch bag or refrigerator.

  • Model numbers: OCST, OCCT, MHRB followed by a number indicate the lid type.
  • Measure in inches or centimeters for accuracy.
  • Keep a list of your container models for quick reference when ordering replacement lids.

Replacing Lost or Damaged Glasslock Lids

If you've lost a lid or it has cracked, you can purchase replacement lids directly from Glasslock or authorized retailers. Glasslock offers Square Lids for square containers, and rectangle lids are available for each Handy Rectangle size. Round lids are also sold separately. When ordering, ensure you select the correct model number. For example, the lid for the MHRB-270 is different from the MHRB-250, even though both are rectangle.

Replacement lids are a cost-effective way to extend the life of your glass containers. Instead of buying a whole new set, you can simply replace the missing lid. Glasslock lids are designed to last, but over time the silicone seal may wear out. If your lid no longer seals tightly, consider replacing it. Always store lids with their matching containers to avoid mix-ups. For sets like the 18pc Glasslock Oven Safe Box Set, you can order individual lids for the specific containers in the set.

  • Check the model number on the container before ordering.
  • Square Lids are available as a standalone accessory.
  • For rectangle containers, order the lid that matches the volume (e.g., 10.5 cups).

Choosing the right lid for your Glasslock container is simple once you know your container's shape and size. Whether you need a replacement for a lost lid or want to ensure a perfect fit for a new container, always match the model number or measure the opening. Explore our selection of Square Lids and rectangle lids to keep your Glasslock collection complete and functional.

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