
RM Cylinders
apex plumbing supplies
*All prices INCLUDE VAT
Apex Plumbing Supplies stock and supply a range of cylinders from RM Cylinders. We stock copper unvented cylinders of various sizes and also supply their stainless steel unvented cylider range Stelflow.
If a sufficient order is placed we also offer free delivery to certain areas. Please contact us for details.
Standard Copper Cylinders

Water Usage
The following can be used as a rough guide for approximate water demand.
Standard Bath ------- 60 Litres
Corner Bath ------- 120 Litres
Gravity Shower ------30 Litres
Power Shower ------- 60 Litres
Wash Basins ------- 5 Litres
Kitchen Sink ------- 15 Litres
Part L Indirect Copper Vented Cylinders
Traditional copper cylinders manufactured to the latest in Part L specification to ensure you get a quality product. Produced to specification you are in full control of the cylinder you install.
Size (heightxwidth) |
Litres |
Gallons |
900x400 |
98 |
21 |
900x450 |
120 |
26 |
1050x400 |
116 |
25 |
1050x450 |
144 |
32 |
1200x450 |
166 |
37 |
1200x500 |
200 |
44 |
1500x300 |
95 |
21 |
1500x400 |
166 |
37 |
1500x450 |
210 |
47 |
1500x500 |
255 |
56 |
1800x300 |
116 |
25 |
900x450 £168.00
1050x400 £177.60
1050x450 £186.00
1200x450 £236.40
1500x300 £225.60
1500x450 £286.80
1500x500 £435.60
1200x500 £417.60
1800x300 £258.00
900x400 £182.40
1500x400 £266.40
STELFLOW (click all images to enlarge)
The RM Stelflow has carefully been brought together from quality components and has been designed with performance in mind.
Using RM's many years of involvement within the hot water industry and out knowledge of bringing unvented cylinders to the market they have created a new standard in unvented water storage.
RM Cylinders have pushed the boundries even further leaving the competition to catch up once again. Using a state of the art production facility RM Cylinders can produce bespoke Stelflow cylinders, tapping sizes and heights can now be changed to suit your application giving you flexability without compromise.

standard unit direct

|
90 litres |
120 litres |
150 litres |
180 litres |
210 litres |
250 litres |
300 litres |
Height |
727 (F) |
915 (F) |
1102 (F) |
1290 (F) |
1478 (F) |
1728 (F) |
2041 (F) |
Diameter |
545 |
545 |
545 |
545 |
545 |
545 |
545 |
Cold Inlet |
129 (A) |
120 (A) |
150 (A) |
180 (A) |
210 (A) |
250 (A) |
300 (A) |
Immersion 1 |
242 (B) |
242 (B) |
242 (B) |
242 (B) |
242 (B) |
242 (B) |
242 (B) |
Immersion 2 |
|
519 (C) |
619 (C) |
719 (C) |
819 (C) |
959 (C) |
1109 (C) |
Sec. Return |
|
|
|
|
1009 (D) |
1259 (D) |
1509 (D) |
T&P Valve |
515 (E) |
703 (E) |
890 (E) |
1078 (E) |
1266 (E) |
1516 (E) |
1829 (E) |
PRICE |
£386.40 |
£399.60 |
£416.40 |
£444.00 |
£462.00 |
£523.20 |
£598.80 |
standard unit indirect

|
90 litres |
120 litres |
150 litres |
180 litres |
210 litres |
250 litres |
300 litres |
Height |
727 (H) |
915 (H) |
1102 (H) |
1290 (H) |
1478 (H) |
1728 (H) |
2041 (H) |
Diameter |
545 |
545 |
545 |
545 |
545 |
545 |
545 |
Cold Inlet |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
Bottom Coil |
299 (B) |
299 (B) |
339 (B) |
374 (B) |
374 (B) |
374 (B) |
374 (B) |
Immersion 1 |
339 (C) |
339 (C) |
379 (C) |
379 (C) |
414 (C) |
414 (C) |
414 (C) |
Stat Pocket |
354 (D) |
354 (D) |
394 (D) |
394 (D) |
474 (D) |
569 (D) |
669 (D) |
Immersion 2 |
|
|
|
|
|
959 (E) |
1109 (E) |
Secondary |
|
|
|
|
1159 (F) |
1409 (F) |
1609 (F) |
T&P Valve |
515 (G) |
703 (G) |
890 (G) |
1078 (G) |
1266 (G) |
1516 (G) |
1829 (G) |
PRICE |
£463.20 |
£486.00 |
£492.00 |
£523.20 |
£531.60 |
£602.40 |
£667.20 |
solar unit direct

|
150 litres |
180 litres |
210 litres |
250 litres |
300 litres |
Height |
1102 (H) |
1290 (H) |
1478 (H) |
1728 (H) |
2041 (H) |
Diameter |
545 |
545 |
545 |
545 |
545 |
Cold Inlet |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
105 (A) |
Bottom Coil |
299 (B) |
299 (B) |
374 (B) |
374 (B) |
374 (B) |
Stat Pocket |
354 (C) |
354 (C) |
429 (C) |
429 (C) |
429 (C) |
Immersion 1 |
702 (D) |
724 (D) |
839 (D) |
914 (D) |
1039 (D) |
Immersion 2 |
619 (E) |
719 (E) |
819 (E) |
959 (E) |
1109 (E) |
Secondary |
890 (G) |
1078 (G) |
1266 (G) |
1516 (G) |
1829 (G) |
PRICE |
£ |
£ |
£ |
£ |
£ |
slimline unit direct

|
60 litres |
90 litres |
120 litres |
150 litres |
180 litres |
210 litres |
Height |
645 (F) |
930 (F) |
1195 (F) |
1470 (F) |
1735 (F) |
1980 (F) |
Diameter |
475 |
475 |
475 |
475 |
475 |
475 |
Cold Inlet |
173 (A) |
173 (A) |
173 (A) |
173 (A) |
173 (A) |
173 (A) |
Immersion 1 |
223 (B) |
223 (B) |
223 (B) |
223 (B) |
223 (B) |
223 (B) |
Immersion 2 |
|
|
733 (C) |
916 (C) |
1093 (C) |
1256 (C) |
Sec Return |
|
|
|
|
|
1676 (D) |
T&P Valve |
448 (E) |
733 (E) |
998 (E) |
1273 (E) |
1538 (E) |
1783 (E) |
PRICE |
|
|
£ |
£ |
£ |
£ |
slimline unit indirect

|
60 litres |
90 litres |
120 litres |
150 litres |
180 litres |
210 litres |
Height |
645 (H) |
930 (H) |
1195 (H) |
1470 (H) |
1735 (H) |
1980 (H) |
Diameter |
475 |
475 |
475 |
475 |
475 |
475 |
Cold Inlet |
399 (D) |
399 (D) |
399 (D) |
474 (D) |
474 (D) |
474 (D). |
Bottom Coil |
299 (A) |
299 (A) |
299 (A) |
339 (A) |
339 (A) |
374 (A) |
Immersion 1 |
339 (B) |
339 (B) |
379 (B) |
379 (B) |
414 (B) |
414 (B) |
Stat Pocket |
354 (C) |
354 (C) |
354 (C) |
394 (C) |
394 (C) |
474 (C) |
Immersion 2 |
|
|
|
|
|
1256 (E) |
Sec Return |
|
|
|
|
|
1676 (F) |
T&P Valve |
448 (G) |
733 (G) |
998 (G) |
1273 (G) |
1538 (G) |
1738 (G) |
PRICE |
|
|
|
£ |
£ |
£ |
horizontal stelflow
Litre |
Direct |
Indirect |
150 |
£ |
£819.60 |
180 |
£ |
£864.00 |
210 |
£ |
£925.20 |
250 |
£ |
£990.00 |
300 |
£1 |
£1150.80 |