Hubei Mingda Plastics Products Co., Ltd. is one of the leading manufacturers and suppliers of square pet plastic jar in China, also supports customized service. Welcome to wholesale cheap square pet plastic jar in stock here and get free sample from our factory. Quality products and low price are available.
Product Overview

This square PET plastic jar has a clean and compact design with a 300ml capacity. The square shape makes it easy to store and stack. Made from food-grade PET material, it's perfect for packaging snacks, capsules, tea, and other dry goods. The clear body lets users see the contents inside, which is ideal for display.
| Item | Details |
|---|---|
| Product Name | square plastic jar |
| Model No. | MD-229 |
| Capacity | 300ml |
| Material | PET |
| Color | Transparent (White optional) |
| Height | 109mm |
| Lid Type | 45-400 screw cap |
| MOQ | 10,000 pieces |
| Available Sizes | 120ml / 155ml / 180ml / 250ml / 300ml / 310ml |


Application Scenarios
This PET plastic jar is widely used for supplements, snacks, spices, and sample packaging. Its square design helps with shelving, transport, and display – no rolling and more space-efficient. The transparent material builds customer trust by showing what's inside.
Product Benefits
Space-saving: Square jars stack more efficiently than round ones
Clear visibility: Great for product display
Multiple sizes: Available in six volume options
Food-safe: Complies with safety standards
Customizable lids: Compatible with various cap styles

Size Options
In addition to the 300ml version, we offer a full range of square PET plastic jar sizes: 120ml, 155ml, 180ml, 250ml, and 310ml. Perfect if you want a consistent packaging style across different product lines.

About MINGDA
MINGDA is a professional manufacturer of plastic packaging products since 2006. We produce plastic bottles, caps, liners, and more. With over 1,600 sets of equipment and advanced inspection tools, our products are exported to over 39 countries. We focus on safe, durable, and practical packaging solutions.









Lid Compatibility
This jar uses a 45-400 threaded mouth and supports various lid styles, such as PP diamond caps, PS transparent double-layer lids, PP child-resistant caps, and PP flip-top lids. Each lid offers a unique opening method and seal level.




Click here to learn more about our bottle cap options.
Packaging & Shipping
We use standard export cartons with PE inner bags. Pallet packing is also available. Each square PET plastic jar is tested for sealing and drop resistance before shipping to ensure it arrives safely and leak-free.


FAQ
Q1: Can I print my logo on the jar?
A: Yes, we offer silk screen, heat transfer, and other printing options.
Q2: Do you have stock available?
A: We produce on demand. Please contact us for lead time.
Q3: Is it suitable for hot filling?
A: Not recommended. PET is best used below 60°C.
Q4: Does the jar provide a good seal?
A: With the right lid and liner, it offers reliable sealing.
Q5: Can I get a sample?
A: Yes, free samples are available. Shipping cost is payable by the buyer.
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