PET Round Straight Wall Jars: 5 Versatile Openings, One Powerful Format

Plascene’s PET Round Straight Wall Jars combine clean cylindrical geometry, wide-mouth access, high-clarity PET, and an unusually broad capacity range in one straightforward packaging platform. The uninterrupted straight walls provide generous room for decoration, while formats from compact jars through larger bulk containers allow the same familiar shape to work across very different fill requirements.

Manufactured in Oxford, California, the range lends itself naturally to products that are scooped, spread, portioned, or accessed directly from the container. Creams and treatment products can take advantage of the wide opening and clean presentation, while specialty foods and dry fills benefit from easy product access and clear visibility. Across the collection, the emphasis remains on a simple jar architecture that can adapt to the product rather than defining one narrow end use.

Built for direct access, clean presentation, and room to scale

• Straight-wall geometry. Clean cylindrical walls create generous, predictable space for wraparound labels, printed decoration, directions, ingredients, and product information.
• Wide-mouth accessibility. The range supports products that need finger access, scooping, spooning, dipping, or easier bulk filling rather than narrow-neck dispensing.
• Broad capacity coverage. Compact retail formats and substantially larger jars can remain within the same recognizable straight-wall packaging language.
• Glass-like clarity, lightweight PET. PET keeps the contents visible while offering a lighter, shatter-resistant alternative to glass for filling, shipping, and everyday handling.
• rPET available. Recycled-content PET is available on request. For brands subject to California SB 54 or retailer sustainability requirements, Plascene provides the material documentation needed to support reporting.

The strength of the PET Round Straight Wall format is its neutrality. It provides enough structure to create a consistent packaging family without competing heavily with the product or label design. That makes it particularly useful when several formulas or fill sizes need to feel related while still serving different practical roles.

Three practical groups across the PET Round Straight Wall range

53–70mm

The compact end of the collection brings together a single 53mm reference with a broader 70mm family. Most of the 4–12 oz jars in this group have relatively low, wide proportions, creating an accessible opening and a grounded presentation within a small overall package.

The 10 oz P0683 is the notable exception. Its taller, narrower body creates a much more vertical silhouette than the surrounding low-profile references, offering a different balance of shelf footprint and usable label height despite sitting within the same general capacity class.

That contrast is a useful reminder that capacity and neck size alone do not define the finished package. Buyers comparing these smaller jars should look closely at actual height, diameter, label area, closure specification, and the way each mold fits the intended filling, packing, and merchandising setup.

89mm

The 89mm platform covers capacities from 8 oz through 34 oz, giving the Straight Wall family a broad middle range between the compact jars and the substantially larger 110–120mm formats. Its opening provides generous direct access while the round straight-sided body keeps the package visually simple and familiar.

These references should not be treated as one fixed silhouette repeated at different capacities. Some of the smaller formats are relatively low and broad, while larger references gain more height as internal volume increases. The result is a family that shares the same neck platform and straight-wall character while offering noticeably different body proportions.

This makes the 89mm range useful when access is important but buyers also need to balance jar height, shelf presence, label area, and overall footprint. Creams, body treatments, hair-care products, spreads, powders, dry foods, and other scoopable or directly accessed products can all fit naturally within this size class.

110–120mm — high-capacity wide-mouth formats

The 110mm and 120mm jars move the Straight Wall format into a distinctly larger packaging class. Both neck platforms provide broad access and substantial internal volume, so the practical difference between them is usually secondary to the capacity, height, diameter, and exact mold geometry of the selected reference.

These larger jars are well suited to applications where the package needs to hold a substantial fill while remaining easy to access. Bulk dry foods, larger powders, ingredients, professional-use products, and high-volume personal-care or cosmetic fills can all benefit from the combination of capacity and wide-mouth access.

At this scale, many references also gain considerably more vertical presence. For example, Plascene describes its 64 oz P0891 as having a tall, robust profile, while the 74 oz P0893 is positioned as a large vertical format with substantial labeling area.

Specifications at a glance

These applications are general packaging guidelines rather than fixed limitations. Final jar selection should reflect the actual product, target fill, jar dimensions, closure specification, and production setup. If you are comparing nearby references, request a sample to evaluate the jar with your product, label, closure, and filling or packing line before final specification.

Which format should you consider?

The PET Round Straight Wall range is best compared by looking at body proportions alongside capacity. Neck diameter provides a useful starting reference, but two jars with nearby capacities can create very different finished packages depending on their height and width.

• Compact formats are generally low and wide, keeping smaller fills easy to access while giving the package a grounded shelf presence. P0683 stands apart with a noticeably taller profile, making it useful when a slimmer footprint or greater vertical label area is preferred.
• Wide retail formats provide broader access and more physical presence, but individual 89mm molds vary significantly in proportion. The choice should therefore balance height, diameter, label area, and how the jar needs to sit on shelf or pack into a case.
• Greater formats prioritize usable internal volume and direct access to substantial fills. Their greater height and overall scale can also provide more room for extensive product information and stronger shelf presence.

The nearby neck sizes should not be treated as a strict hierarchy. A 53mm and 70mm jar can serve similar capacity ranges while producing very different package shapes, just as a 110mm and 120mm reference may overlap in practical use. The better mold is usually determined by the actual dimensions, closure system, filling method, case configuration, and product-access requirements rather than by choosing the widest opening available.

The 89mm group sits between those two ends and offers particularly broad variation in body proportions. A lower, wider reference and a taller jar can share the same neck finish while presenting very differently at retail. Plascene provides the stock range; the final specification ultimately follows the customer’s product, capacity, closure, labeling, and production requirements.

Custom versions are available at wholesale scale

Every reference above ships from stock — but none of them are the only option. Brands that need a specific color, a defined rPET percentage, custom print or decoration, or a jar geometry that belongs exclusively to them can work through Plascene’s Custom Solutions program.

The commitment level scales with the project scope:

• Stock references are available in standard case and pallet quantities with no minimum tooling investment — the lowest-friction way to get to market.
• Custom color, tint, rPET level, or surface decoration requires a dedicated production run. Most projects in this category land in the 10,000–50,000 unit range, since setup, purge, and quality qualification all eat into the run before the first saleable unit comes off the line.
• An exclusive (private) mold is the highest-commitment path and also the one where the unit economics improve most with scale — typically making sense at 50,000–100,000+ units, where the tooling cost amortizes down to a manageable per-unit figure.

None of those numbers are fixed rules — they shift depending on the jar, the closure type, the decoration complexity, and the production window. A quote conversation is the fastest way to get an accurate picture for a specific project.

A U.S. supply partner — not just a bottle vendor

Packaging decisions for pharmaceutical and supplement brands increasingly come down to more than unit price. With domestic production in Oxnard, California, Plascene offers competitive lead times, closer collaboration on custom projects, and a supply chain built to keep moving when demand tightens. For brands navigating SB 54 and the broader shift toward recycled content, that means a partner who can help plan material strategy through the company’s sustainability program — not just fill a purchase order.