Best Doyma Dichtung 2026

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Last Updated - 22.07.2026

Best Choice

01

Ritzer

HRD100 SG Ring Seal with Segment Ring Technology 100 mm for 8x4-16.5 Cable

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9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With segment ring technology for individual adjustment to the cable diameter on site
Unoccupied openings blind closed from the factory. Split seal for retrofitting
Seal width: 40 mm, press plate thickness: 5 mm
Ring space seal for sealing cables in core holes or lining pipes. Split design for sealing new or already laid cables.
Pressing plates, screws, nuts and washers: stainless steel V2A (AISI 304L), rubber: EPDM
Gas and waterproof, radon safe
Feed pipe/core bore diameter: 100 mm. Media tube diameter: 8 x 4-16.5 mm
FHRK certified
Box contents: seal with blanking plug and 1 lubricant pin
Area of application: water exposure class DIN 18533: W1-E, W2.1-E and W2.2-E and WU directive: load class 1 and 2

114,90 €
02

Ritzer

HRD100 SG Ring Spacer Seal with Segment Ring Technology 100 mm for 2x8-30 and 3x4-16.5 Cables / Pipes

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

With segment ring technology for individual adjustment to the cable diameter on site
Unoccupied openings blind closed from the factory. Split seal for retrofitting
Seal width: 40 mm, press plate thickness: 5 mm
Ring space seal for sealing cables in core holes or lining pipes. Split design for sealing new or already laid cables.
Pressing plates, screws, nuts and washers: stainless steel V2A (AISI 304L), rubber: EPDM
Gas and waterproof, radon safe
Feed pipe/core bore diameter: 100 mm. Media tube diameter: 2 times 8-30 mm and 3 times 4-16.5 mm
FHRK certified
Box contents: seal with blanking plug and 1 lubricant pin
Area of application: water exposure class DIN 18533: W1-E, W2.1-E and W2.2-E and WU directive: load class 1 and 2

114,90 €
Value for Money

03

WITTKOWARE

WITTKOWARE DN100 Wall Duct Split 4-Way 4-34 mm | Folding Ring Space Seal | V2A Stainless Steel & EPDM 40 mm | Pressure Tight 2.5 Bar

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

SEVEN-STAGE LAMELLENS: The integrated onion rings cover the exact gradations 4-6, 6-10, 10-14, 14-19, 19-24, 24-29 and 29-34 mm. The sealing area grips absolutely reliably from a minimum cable diameter of 3.5 mm.
Night laying: Thanks to the intelligent, divided construction, the DN100 ring space seal can be easily opened and mounted directly around already laid cables or pipes with the practical locking function.
Maximum pressure water resistance: the 40 mm thick EPDM rubber element guarantees an absolute seal against pressing water up to 2.5 bar and withstands extreme temperatures from -30 to +120 °C without any problems.
Lightning fast V2A mounting: the solid pressure plates and the one-sided welded bolts are made of stainless steel V2A. As the nuts only need to be tightened from one side (8 Nm), the installation time is drastically shortened.
Certified radon protection: the high-quality wall bushing made in Germany blocks the carcinogenic radon gas from the soil without gaps and optimally protects your living and basement rooms.
4-way onion ring technology: allows flexible passage of up to 4 cables with an outer diameter of 4 to 34 mm. The labelled slats can be easily adjusted to the required diameter.

69,99 €
04

Ritzer

Ring space seal / wall bushing DN100 for 3 cables 6-18 mm and 1 pipe 25-32-40 mm

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thanks to the segment ring technology, an individual adjustment to the cable diameter is possible on site
Optical and tactile mounting safety thanks to the built-in control opening
Full customer support: detailed assembly videos and FAQs, lifetime support and personalized help
For sealing newly installed or already laid pipes in core holes or feed pipes.
For core drilling DN 100, diameter core bore 99 mm - 103 mm
For 3 cables 6-18 mm and 1 tube 25, 32 or 40 mm

50,67 €
05

CPROSP

CPROSP Wall Feed-Through Ring Space Seal 100 mm, Suitable for Pipe and Cable Diameter 0-55 mm, Universal Rubber Sealing Insert with Cold Galvanised Iron Sheet, Easy Installation

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9.0

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

️ HIGH QUALITY MATERIALS FOR LONGER RELIABILITY: Made of smooth, flame retardant synthetic rubber with high resistance to temperatures and wear for optimal tightness. Reinforced by rust-proof, galvanized steel components and anti-slip screws for lasting stability. Note: Our product may have a typical rubber smell. Please ventilate it in a well-ventilated place before first use.
️ Excellent sealing performance: By tightening the steel screws evenly, the sealing ring is compressed, ensuring a tight fit both around the drill holes in the wall and around the cables. This ensures a reliable seal even at pressures of up to 1.5 bar, making the product the ideal choice for demanding construction projects.
Reliable sealing for pipe: our ring space seal forms a flexible and waterproof barrier between wall breakthrough and pipe. Guarantees a reliable, ring-shaped seal for gas, water, sewage pipes and electrical cables in construction, industry and solar systems. Protect your building reliably from moisture, dust and pest infestation.
Flexible adjustment for optimal sealing: using the onion ring technology, you can manually adjust the seal to the exact dimensions of your pipes. The universal solution for all diameters from 0-55 mm. For best results, please measure the diameter of your cable or pipe first.
Flexible & Quick Installation Just cut a suitable opening into the ring space seal, then open the side to sheathe the cable before inserting it into the central bore(99-105mm). Tighten the screws to achieve an instant seal and secure locking - flexible installation with firm grip.

35,95 €
06

PSI

PSI Compakt Varia Ring Space Seal Core Bore (Medium Tube AD) 100 mm (18-65 mm)

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Temperature range -30°C to +120°C; UV resistant
Rubber thickness: 40 mm
PSI Compact Varia ring space seal for sealing wall ducts with gas, water, sewage pipes and cables
Multiple diameters can be sealed by the onion ring technology.
EPDM rubber; Shore A 43° ±5; pressure plates VA;

38,23 €
07

Ritzer

DN100 Split Ring Spacer Seal Diameter 99-103 mm for 4 Cables 8-30 mm with Onion Ring System & Blanking Plug, Gas and Waterproof, Wall Feed-Through 100 mm

12% Off

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Split design for retrofitting - Easy installation even with already laid cables or pipes, no need to disconnect or remove.
Robust stainless steel design - Rustproof press plates, screws and nuts (V2A/AISI 304L), sealing width 40 mm for high durability.
Professional cable seal for wall feedthroughs - Fits core holes DN100 (diameter 99-103 mm), ideal for sealing in concrete walls and lining pipes.
Onion Ring System with Blanking Plugs - Individually adjustable for 4 cables/pipes with 8-30mm diameter, secure sealing of unused openings.
Gas and waterproof, radon safe - Made in Germany with strict quality control and lifetime customer support.

74,90 € 84,90 €(12% Off off)
08

Ritzer

Ring space seal DN 200 for pipe 110-162 mm HSD200-SSG 110-162 SL segment

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thanks to the segment ring technology, an individual adjustment to the cable diameter is possible on site.
Quality product: This product has been awarded according to the FHRK test base. Very robust seal with 25 years guaranteed safety
Optical and tactile mounting safety thanks to the built-in control opening.
Gas and waterproof. Radon safe.
For sealing newly installed or already laid pipes in core holes or feed pipes.
For core bore / chuck pipe DN 200 (mm), suitable for pipe/pipe with a diameter of 110 mm to 162 mm.
For cables with a diameter of 110 mm to 162 mm

83,05 €
09

Ritzer

Ring Space Seal Wall Feed-Through Core Bore Diameter 150 for KG 2000 Pipes DN 100 Diameter 110

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thanks to the segment ring technology, an individual adjustment to the cable diameter is possible on site
Quality product: This product has been awarded according to the FHRK test base. Very robust seal with 25 years guaranteed safety
Optical and tactile mounting safety thanks to the built-in control opening
Material: pressure plates, screws: stainless steel V2A (1.4301)
Gas and water resistant. Radiation-proof.
For sealing newly installed or already laid pipes in core holes or feed pipes.
For core bore / chuck pipe DN 150 (mm), suitable for pipe/pipe with a diameter of 70 mm to 112 mm.
For KG 2000 pipes DN 100 Ø110. Continuous adjustment to the cable diameter from 70 mm to 112 mm

62,17 €
10

Ritzer

DN100 Split Ring Spacer Seal Diameter 99-103 mm for 1 Pipe/Cable 25-63 mm with Segment Rings & Blanking Plugs, Gas & Waterproof, 25 Year Guarantee Safety

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8.2

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Split wall bushing for subsequent installation in core holes or lining pipes diameter 100 mm. Sealing width: 40 mm.
Maximum tightness and durability - Gas and water resistant to 2.5 bar, radon safe, tested according to FHRK standard.
HEAVY DUTY MATERIALS - Press plates, bolts and nuts made of stainless steel V2A (AISI 304L) or V4A (AISI 316L), EPDM rubber gasket.
Full customer support - detailed assembly videos and FAQs, lifetime support and personalised help
For a 25-63mm cable or pipe - Includes super segment ring technology and blanking plugs for 25, 32, 40, 50 or 63mm diameters.
25-year guaranteed safety - with control opening for visual torque testing and optical mounting aid

44,95 €