Not sure who has a problem reading. The original poster stated that the old pump had worked for the two years he owned the boat and the new pump did not seem to work at all.
On most marine applications , once you get fuel to the pump itís a downhill run to the carb but getting the lift to get the fuel to the pump is key. A low suction pump may work fine when the tank is full but one night you are motoring back in a storm and the tank gets low and the engine dies for lack of fuel.
Find the spec sheets
for the pumps, itís all online and find a pump with sufficient lift and under 4 lbs discharge pressure. They use the high lift pumps on ultralight aircraft so they are out there.
Moyer is fine if you want to pay double but why bother for commonly available parts
Electric pumps need to be kept very clean and there should be an in-line filter between the tank pickup and the pump. You can continue to use additional filters downstream from the electric fuel pump. The ABYC says the electric pump must be located at the engine too. No long pressurized fuel lines allowed.