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LEAD RINGS, O-SHAPED Heathrow Scientific
LEAD RINGS, O-SHAPED Heathrow Scientific
LEAD RINGS, O-SHAPED 125 mL to 500 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 250 mL to 1000 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 500 mL to 2000 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 1000 mL to 4000 mL Heathrow Scientific
LEAD RINGS, O-SHAPED Heathrow Scientific
LEAD RINGS, O-SHAPED Heathrow Scientific
LEAD RINGS, O-SHAPED 125 mL to 500 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 250 mL to 1000 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 500 mL to 2000 mL Heathrow Scientific
LEAD RINGS, O-SHAPED 1000 mL to 4000 mL Heathrow Scientific

Heathrow Scientific O-Shaped Lead Rings

$25.00

    Vinyl-coated O-shaped lead rings that stabilize flasks on the bench or in water baths. Heathrow Scientific rings will not mark or scratch benchtops and labware.

    • Four sizes for 125 mL to 4000 mL flasks
    • 210 g to 935 g depending on size
    • Sold as 1 Each (HS8882A to HS8882D)

See All Specs

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Fast Delivery

Most items ship same day

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Manufacturer Warranty

All products are covered by manufacturer warranty

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After-Sale Support

24/7 support

Vinyl-coated O-shaped lead rings to stabilize flasks on the bench or in water baths

A light flask can tip or float; a weighted ring keeps it put. Heathrow Scientific’s O-Shaped Lead Rings are vinyl coated so they will not mark or scratch benchtops and labware. Four sizes fit flasks from 125 mL up to 4000 mL, and each is sold as one blue ring.

Manufacturer photograph of a blue vinyl-coated O-shaped lead ring
Manufacturer photograph of the O-shaped lead rings (family image).

Choose your flask size

  • HS8882A: fits 125 mL to 500 mL flasks, 210 g
  • HS8882B: fits 250 mL to 1000 mL flasks, 490 g
  • HS8882C: fits 500 mL to 2000 mL flasks, 610 g
  • HS8882D: fits 1000 mL to 4000 mL flasks, 935 g

Each size is one blue ring (1 Each). Match the flask size range to the flasks you use.

Gentle on benches and labware

Heathrow’s one stated feature is the vinyl coating: the rings will not mark or scratch benchtops and labware. Heathrow positions them for stabilizing vessels and labware on the bench or in water baths.

Vinyl coating

The coating protects the surfaces the ring touches. Heathrow does not name the core material or give chemical-resistance information.

Weight for stability

Weight rises with size, from 210 g (0.46 lb) for the smallest ring to 935 g (2.06 lb) for the largest.

Sizes and dimensions

Dimensions as published by Heathrow:

Manufacturer image of O-shaped lead rings
Manufacturer image of the lead rings.
  • HS8882A: inner diameter 1.9 in (4.8 cm), outer diameter 3 in (7.7 cm), 210 g (0.46 lb)
  • HS8882B: inner diameter 2 in (5.1 cm), outer diameter 3.5 in (9 cm), 490 g (1.08 lb)
  • HS8882C: inner diameter 2.2 in (5.7 cm), outer diameter 3.9 in (9.8 cm), 610 g (1.34 lb)
  • HS8882D: inner diameter 2.8 in (7 cm), outer diameter 4.5 in (11.5 cm), 935 g (2.06 lb)

Flask size ranges overlap, so check the neck or base fit for your own glassware.

What the listing does not state

Heathrow gives no temperature rating, chemical compatibility or safety information for these rings. Confirm those details with Blue Tiger Scientific if your water bath work involves heat or aggressive liquids.

Ordering lead rings

Each order is 1 blue ring. Choose the flask size range on this page. Blue Tiger Scientific confirms availability and delivery details with your order.

Frequently Asked Questions

How many rings come in one order?

One. Each size is sold as 1 Each.

Which sizes are available?

HS8882A (125 mL to 500 mL), HS8882B (250 mL to 1000 mL), HS8882C (500 mL to 2000 mL) and HS8882D (1000 mL to 4000 mL).

Will the ring scratch my bench or glassware?

Heathrow states the vinyl-coated rings will not mark or scratch benchtops and labware.

Can I use them in a water bath?

Heathrow lists stabilizing vessels and labware on the bench or in water baths as the use. No temperature rating is given.

What color are they?

Blue.

How heavy are the rings?

210 g (0.46 lb), 490 g (1.08 lb), 610 g (1.34 lb) and 935 g (2.06 lb) for HS8882A to HS8882D.

What are the ring diameters?

Inner diameters run 1.9 to 2.8 in and outer diameters 3 to 4.5 in, depending on size. See the specification table for each.

What is the ring made of?

Heathrow describes them as vinyl-coated lead rings. It does not give further material details.

    SpecificationDetail
    BrandHeathrow Scientific
    ProductLead Rings, O-Shaped
    Catalog NumbersHS8882A; HS8882B; HS8882C; HS8882D
    Quantity1 Each
    ColorBlue
    CoatingVinyl; will not mark or scratch benchtops and labware
    HS8882AFits 125 mL to 500 mL; ID 1.9 in (4.8 cm); OD 3 in (7.7 cm); 210 g
    HS8882BFits 250 mL to 1000 mL; ID 2 in (5.1 cm); OD 3.5 in (9 cm); 490 g
    HS8882CFits 500 mL to 2000 mL; ID 2.2 in (5.7 cm); OD 3.9 in (9.8 cm); 610 g
    HS8882DFits 1000 mL to 4000 mL; ID 2.8 in (7 cm); OD 4.5 in (11.5 cm); 935 g
    UseStabilizing vessels and labware on the bench or in water baths
    Temperature / Chemical RatingNot stated

    Ordering Information

    Cat. No.DescriptionPack
    HS8882AO-shaped lead ring, fits 125 mL to 500 mL flasks, blue1 Each
    HS8882BO-shaped lead ring, fits 250 mL to 1000 mL flasks, blue1 Each
    HS8882CO-shaped lead ring, fits 500 mL to 2000 mL flasks, blue1 Each
    HS8882DO-shaped lead ring, fits 1000 mL to 4000 mL flasks, blue1 Each

    Heathrow Scientific: Shipping, Returns & Manufacturer Support

    Blue Tiger Scientific is your reseller and point of contact for orders and returns purchased through our store.

    Shipping & Availability

    Shipping charges, available delivery methods and any delivery estimate are confirmed with your Blue Tiger Scientific order or quote. Contact Blue Tiger Scientific before ordering if you need a particular delivery date or special shipping arrangements. Supplier availability and carrier schedules can affect fulfillment; a delivery estimate is not a guaranteed arrival date.

    Returns Through Blue Tiger Scientific

    Start every return, exchange or order-related issue with Blue Tiger Scientific. Provide your order number, product catalog number, quantity and the reason for your request. For damage, missing items or an incorrect item, retain the packaging and include photographs where applicable.

    Do not send goods to Blue Tiger Scientific or Heathrow Scientific without return authorization and shipping instructions from Blue Tiger Scientific. We will coordinate any required manufacturer Return Goods Authorization (RGA). Return eligibility, any applicable charges and the approved shipping destination will be confirmed for your specific request before you ship. Keep the product, original packaging and supplied materials together while your request is reviewed.

    Manufacturer Warranty & Service

    Heathrow Scientific handles manufacturer warranty assessments, product service and other manufacturer-specific technical matters. Blue Tiger Scientific can help coordinate these requests and provide purchase documentation. If a return is required, arrange it through Blue Tiger Scientific before shipping.

    Coverage is subject to the manufacturer’s applicable terms for this specific product. Published equipment warranty periods should not be assumed to apply to this labware or consumable. No product-specific warranty duration is stated here. Retain your invoice or proof of purchase for any manufacturer review.

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