# Shower Door Cylinder Back-to-Back Knobs with Plastic Sleeve – 4 Finishes | CRL | IDEAL Shower Doors

URL: https://idealshowerdoors.com/store/p/sdkp112ch
Description: The CRL Cylinder Back-to-Back Knobs with Plastic Sleeve is a back-to-back knob for frameless glass shower doors that fits 1/4" to 1/2" glass. Made by C.R. Laurence (CRL) in 4 finishes, including polished chrome, brushed nickel, matte black. A slim cylinder knob for both sides of the door. The protec
Seller: IDEAL Shower Doors, Danvers, MA (https://idealshowerdoors.com/store/)

## Product facts

- Part number: SDKP112CH, SDKP112BN, SDKP112MBL, SDKP112BR (CRL)
- Product: Cylinder Back-to-Back Knobs with Plastic Sleeve
- Price by finish: Polished Chrome (SDKP112CH) $19.49 each; Brushed Nickel (SDKP112BN) $19.49 each; Matte Black (SDKP112MBL) $22.49 each; Polished Brass (SDKP112BR) $34.49 each
- Availability: Polished Chrome: in stock; Brushed Nickel: in stock; Matte Black: in stock; Polished Brass: in stock
- Summary: The CRL Cylinder Back-to-Back Knobs with Plastic Sleeve is a back-to-back knob for frameless glass shower doors that fits 1/4" to 1/2" glass. Made by C.R. Laurence (CRL) in 4 finishes, including polished chrome, brushed nickel, matte black.
- Shipping: free on every order; usually ships within 3-7 business days (US only).
- CRL fees (passed on at cost, never marked up): $5.00 small-order fee on orders under $50. A single unit pays $5.00 in fees. Details: https://idealshowerdoors.com/store/policies#fees
- Returns: All sales final, no returns or exchanges. https://idealshowerdoors.com/store/policies#final
- Buy: https://idealshowerdoors.com/store/p/sdkp112ch

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![CRL Cylinder Back-to-Back Knobs with Plastic Sleeve, Polished Chrome](https://idealshowerdoors.com/store/img/hw/SDKP112CH-1.webp)

CRL · Part SDKP112CH In stock

# Cylinder Back-to-Back Knobs with Plastic Sleeve — Polished Chrome

A slim cylinder knob for both sides of the door. The protective plastic sleeve makes it a great fit for sliding bypass doors.

Polished Chrome ·

$19.49

+ Free shipping

**1/4"–1/2"** Glass thickness

**3/4"** Diameter

**Back to back** Mounting

Finish: **Polished Chrome**

**Ships free to your door** Free on this and every order. Usually ships in 3–7 business days.

**Free shipping** On every order

**All sales final** Check your [glass thickness](https://idealshowerdoors.com/store/measure).

**How-to guides** [Written by installers](https://idealshowerdoors.com/store/guide)

## About this knob

The CRL Cylinder Back-to-Back Knobs with Plastic Sleeve is a back-to-back knob for frameless glass shower doors that fits 1/4" to 1/2" glass. Made by C.R. Laurence (CRL) in 4 finishes, including polished chrome, brushed nickel, matte black.

These cylinder knobs add a simple, clean touch without taking attention away from an all-glass door. Each knob is 3/4" across and stands 1-1/4" off the glass, with one on each side of the door. The plastic sleeve protects the knob surface, which is why it's the go-to choice for sliding bypass shower doors. They're made of solid brass and fit glass from 1/4" to 1/2" thick. You'll need a single 3/8" or 1/2" hole through the glass.

- Back-to-back: one knob on each side of the door
- 3/4" (19 mm) diameter, stands 1-1/4" (32 mm) from the glass
- Plastic sleeve protects the knob, ideal for sliding bypass doors
- Solid brass construction
- Fits 1/4" to 1/2" (6 to 12 mm) tempered glass; needs a 3/8" or 1/2" (10 or 12 mm) hole

## Specs

| Spec | Value |
| --- | --- |
| Finishes | 4 |
| Diameter | 3/4 in. (19 mm) |
| Glazing Thickness | 1/4 in. To 1/2 in. (6 mm To 12 mm) |
| Height | 1-1/4 in. (32 mm) |
| Material | Brass |
| Mounting Type | Glass Mount - Back To Back |

Matching hardware

## Complete the look in Polished Chrome

- [Hinge Shower Door Hinge – Cologne 044 Wall Mount, Offset Back Plate Polished Chrome](https://idealshowerdoors.com/store/p/c0l044ch?part=C0L044CH)

$68.11

- [Glass clamp Beveled Hole-in-Glass Fixed Panel U-Clamp Polished Chrome](https://idealshowerdoors.com/store/p/bcu4ch?part=BCU4CH)

$12.35

- [Towel bar 24" Single-Sided Tubular Towel Bar Polished Chrome](https://idealshowerdoors.com/store/p/bm24ch?part=BM24CH)

$46.23

- [Robe hook Designer Robe Hook Polished Chrome](https://idealshowerdoors.com/store/p/drh1ch?part=DRH1CH)

$19.49

## Common questions

**What glass thickness does the CRL Cylinder Back-to-Back Knobs with Plastic Sleeve fit?**

1/4" to 1/2" thick tempered glass. Measure your glass at a bare edge before you order; our measuring guide shows how.

**How many holes does it need?**

One. The two knobs bolt together through a single 3/8" or 1/2" (10 or 12 mm) hole in the glass.

**Is it one knob or a pair?**

A back-to-back pair: one for the inside of the door and one for the outside, with the hardware to join them through the glass.

**What finishes does it come in?**

Polished Chrome, Brushed Nickel, Matte Black, Polished Brass. Match the finish of the hinges and other hardware on your shower.

**Can I return it?**

No. All sales are final, so please check your [glass thickness](https://idealshowerdoors.com/store/measure), hole spacing and finish before you order.

Pull Handles & Knobs

## More like this

[See all →](https://idealshowerdoors.com/store/c/pulls-knobs)

- [CRL BM8X8CH 8" Back-to-Back Tubular Pull Handle 14 finishes from $32.99 View](https://idealshowerdoors.com/store/p/bm8x8ch)
- [CRL SDK100CH Traditional Back-to-Back Shower Door Knobs 10 finishes from $26.99 View](https://idealshowerdoors.com/store/p/sdk100ch)
- [CRL LP24CH 24" Ladder Style Pull Handle 5 finishes from $250.89 View](https://idealshowerdoors.com/store/p/lp24ch)
- [CRL SQ8X8CH 8" Back-to-Back Square Pull Handle 18 finishes from $68.61 View](https://idealshowerdoors.com/store/p/sq8x8ch)
- [CRL SERNHP2MBL Round Thru-Glass Finger Pull 4 finishes from $26.99 View](https://idealshowerdoors.com/store/p/sernhp2mbl)

Replacing a handle?

### Match your holes, glass and finish.

Measure center to center between your existing holes and check your glass thickness. A new handle has to match both.

[How to measure your glass →](https://idealshowerdoors.com/store/measure)

Popular guides

### Fix it right

- [How to measure your glass →](https://idealshowerdoors.com/store/measure)
- [All guides →](https://idealshowerdoors.com/store/guide)
- [Glass Care Spotless glass Remove water spots and protect your shower glass. Shop Glass Care →](https://idealshowerdoors.com/store/glass-care)